we have that trouble as well.

even   have  4x4 trucks   doing that to us..     we got one though.. he got stuck in the trees   but he just  said the truck was stolen.

a neighbor of ours  dont have the problem anymore..  and  he nver  posted a thnig

he was a   veitnam -sniper...      one night he just got his gun out and  STOPPED  a truck  comming in  to his field...

word got out!    no one bothers him  LOL.