Well yeah the cop and the lady were definitely in the wrong, but he's going to have to dish out a big chunk of money to a lawyer to get anything done about it. And he's going to have to get a really conservative judge to lean his way. And even if he does, they didn't do any damage to his property so I seriously dought he'll get any big sum of money. And there is probably no chance of either of them loosing their jobs.
I would have called the state cops and had her arrested for trespassing seeing how the sheriff wasn't doing it. But even the state cops would probably side on the government worker instead of the land owner.
Sadly we let government rule to much of our lives.