***DISCLAIMER: the following advice is given only as a matter of reporting what my lawyer told me, and should nott be construed as legal advice. If you need legal advice please consult a competent attorney***
We had a similar situation down at grandaddy's place that had been ongoing for far too long. Our local authorities had done nothing with over 250 pictures many of which showed license plates and at least a dozen showed the lock being cut off by two people.
We were told that if you injured any person you culd face charges, however any damage they sustained to their vehicle as a result of treaspassing would be on them, provided that nothing *negligent* was done on our part that could cause bodily harm.
Since that time Grandad has had 3 nice catches.
The first involved a railroad tie with 5 railroad stakes sticking out of the ground buried through one narrow part of the trail. (BTW he has one of those oh so popular power line trails)
He inherited a late 70s Bronco with 44s for a few weeks as a result.
Then after that this asshat and his buddies got smart. First they cut down a tree to go around the spike strip, then tore down his fence to get around, then tore it down again to get back on the trail. Apparently the large attraction was a very nice mudhole down near at bottom of a very large draw. Well my grandad decided, if you can't beat 'em join 'em.
Since they obviously liked playing in big mudholes, he had me drive the backhoe down there, a full day playing on a back hoe, an hour spent hauling dirt to fill in a few holes on the farm, and some help from an uncle who is on the volunteer fire department (with the tank truck of course) it looked just about like it did before I started.
A week later there was a Brand new TJ (this was in ~97-98) and his buddies "BIG TRUCK" at the bottom of my playground....Underwater,...completely.
Guess what the Big truck was, the same aforementiond 70s bronco. Only now it was rolling on some 40" Gumbos...
So proceed at your own risk, but I do know the kids dad that owned the TJ sued Granpa, and the judge laughed it out of court, after ordering him to pay our lawyer fees and physical damages and time to repair the fence.