Suspected anti's huh? That could be, or maybe they are hunters themselves and are jealous that you are hunting on that land!!! I agree that you should sit close and get it on film when they vandalize your vehicle
You could hook up with the local National Guard unit--get them to bring out a M1 Abrams......that should deter anyone from messin with ya.
On a serious note, that is a bad situation to be in, because every ounce of man in ya wants to kick somebodys a## in that situation. Don't give in to that urge and make hunters look bad. We are salesmen of not only our profession, but the sport of hunting as well.
Just my $00.02
God Bless and Happy Hunting,
SL