The parents are pathetic. Personally in the face of their reactions I would be changing my mind, pressing charges and holding the parents of minor children financially responsible for the shenanigans. Let's see how they feel about their precious ones (minor and adult) being slapped with a criminal record. Let's see, trespassing, destruction of property, underage drinking what whatever else the police can find, after all thanks to the kids there are pictures galore out there for evidence.
No good deed goes unpunished it seems. The parents were unhappy with the first solution to the problem so I don't see why the owner can't come up with another solution.
If I turn the other cheek and forgive only for it to be "slapped" I sure won't present the other one to be slapped, it's game on.