My point is they ( coyotes ) not only know you are there , they know if it’s YOU if you get my meaning!
The only way in creation that any wild animal could recognize any trapper as an individual is if the trapper has missed it and messed with it enough times for the association to form. You can't recognize any other human until you have been introduced and I may not recall some one I have worked with five years later.
So, I'll say the animals know "something different was there" and in an area where interaction is common the animal may know that the "something different is a" human, or a danger, but, it is not going to distinguish you from tbh until one of you has up-close personal confrontation with it, and let it live.
I've had deer, fox, coyotes and probably others cut my trail and track me to within yards while I was still there; and I will bet you have too. I've also had them wind scent me and clear out. The thing is these animals are animals and do not reason in the same manner that we do. They simply react to what ever they encounter.
Diesel makes a pretty good cover scent and I've never had wild creatures shy from it. either when still hunting or trapping. A tractor parked out in the woods or fields never keeps wildlife from being there.
There used to be a trapper near me that washed his hands in fox urine before making any set, and he wiped it on his boots too, but he caught just about as many animals as the other guys that were super clean.