Not sure about AZ law but I do know that in a national forest there are no "I was here first" rules. What is courteous and ethical may have nothing to do with whats legal.
Last year I had a Burb load of guys park NEXT TO MY BLIND, I asked them to be careful and not shoot my direction in case they didnt know I was there. They sat there a while and then left. (I guess they were going to shoot out of the burb) .
Later that day they drove by our camp and saw we were out of state. The next day a warden came in and said someone had reported we were poaching. I wonder who reported that?
Losers