No, as all land is posted by law in Georgia and most southern states. Down here the burden is on the trespasser not the property owner to know the property lines. No excuses and only a handful of exceptions, game wardens/surveyors/utility workers. The game warden one is on the way out though with courts in Tennessee ending open fields and a case in Alabama heading that way as well.

Not allowed by code. You can but the tag thing still applies. Now just how they will know raises 4th amendment issues. They abuse that as they're fines come in below the costs of fighting it.

sell it or tag it

That's often the choice we make. I got a bs careless driving ticket in KY on an out of state youth hunt when my daughter was 7 now she is 23 so its been a while back . I had to go to court 4 times they keep continuing it. that was 2.5 hr drive one way each time and some missed work. Cost me a few thousand added up to "WIN" my case. Would have been much cheaper to just pay the ticket and that's what they count on most people to Do. I have just a little to much old stubborn German in my blood to back down when I'm right even if it cost me in the long run.

What I think the question about posting your property has to do with is its assumed that anyone, including LEO can reasonably walk up to your front door and knock to sell/talk/ or whatever with you.
If you land is posted, including the path to the door and driveway that might be legal justification to keep everyone including LEO off your property period.

I'm no lawyer but that's my understanding.

Not sure on that one. My understanding is that gated property has that effect and I've contemplated fencing the front but I'd need some sort of automated drive through gate as I can't reasonably stop in the road to open and close a gate.

Curtilage is the area that surrounds your dwelling that you keep maintained or fenced. It's the area that you take care of at regular intervals. Think of the mowed yard around your house. That's an easy way of understanding the concept. There are seven exceptions to a search warrant requirement. As mentioned by another on this topic, open fields is another exception. At least that's what I learned in college and then the law enforcement academy. I'm sure some will ask "what about this or that". Look up the seven exceptions and maybe some case law on those exceptions. A trapper site is probably not the best place to ask for legal advice but it's a great place to vent and get opinions from people that have watched Adam 12 (dang...I miss that show).

What kind of code violation are you talking about?
How can they cite you for having an expired tag if it is not on a public road? Never heard of such a thing.

Derelict vehicle in yard type infraction. The defining item is the tag not condition. It could be up on blocks as long as the tag is current.

Read that as pay me.

I never did to. Surprising a southern State is doing this.

Couple towns in my county require a tag on any vehicle. One of the reasons i dont live there. Dont keep old cars on hand but if they have ordinances like that they are to far in other peoples business. Were you unaware that was an ordinance? Now you know. Your not getting out of paying that ticket. So put up with it or move. City judge does what the city wants or loses his cushy job.

I’d wonder more which neighbors complained.

City living....

The county has records when you purchase tags and know that yours was outdated and the vehicle was on your property and registered to you they didnt have to see it just issue the citation based on probable cause like any other violation.

Drone, they flew it over and saw what you have.
Many, many states and counties are using them now for property tax assessments.
If it is a county ordinance then good luck fighting it.

I seriously doubt any of our code enforcement are that savvy.

It all comes up on a computer but go fight it.

I'm not really interested in fighting it per se but I got real heartburn over a warrantless search of my property. As others have said and I freely admit there was plenty of probable cause to believe that the vehicle had an expired tag. Just being backed in and immobile for a long period of time and inoperable is probable enough.

But cause is not warrant to search, particularly as this wasn't a movable crime scene or exigent circumstances. I would even go so far as to say there was more than sufficient probable cause to convince a magistrate to sign off on a warrant but they did not do that. Instead they conducted a warrantless search of the property. Especially eggregious considering it was done without consent and while I and the wife were not home.

I think you are mistaken about that.

Probably a municipal code dealing with unregistered vehicles not under cover (keeping a junkyard). Went though this a few years ago, someone ( probably new to the area) complained. Vehicles had been on the property for years. County sent a notice of the code ... "only two unregistered vehicles allowed on the property not being under cover.". County commissioner had come out to review the complaint, saw four vehicles on the property and reasoned their was a 'possible' violation. There was no way that they could have verified a violation from the public access. The county sent a notice of the code and 30 days to remedy the situation. It was a county wide crackdown, something to do with having a code related to junkyards. We had to provide photo evidence to the commissioner's office that the property wasn't in violation. And yes the property is posted.

As a side note, when my first wife divorced me, the sheriff delivered the summons at 10:00 pm, but only drove up to the trespassing sign on the driveway. I don't know if it was the sign or the LGD that was the deterrent. He did apologize for having to deliver the papers when I went out to see what was upsetting the dog.