Many years ago during the bow season at our camp, my cousin jumped onto his TV and was heading to the back section of our property. I was only minutes behind and was walking to a spot much closer to camp. As I walked up the hill, on the very trail my cousin just went up on with his ATV, made a turn into the pines heading for one of our ladder stands. Only a short distance in, I spotted a buck rubbing his rack on a sapling. This was just a short time after my cousin went by on his machine!!! Guess ATV's are something that they are use to seeing and hearing in the woods, like a famers tractor out in a field.
My favorite 3 times to do scouting are about a month after the regular season closes, the spring, and to double check everything come September.