Yes, fighting them in court. Sue the bejesus out of them for excessive force and whatever else. He did nothing wrong, he even said he wasn't resisting, but never fight them in the street, especially if there are more than one of them. I'd rather fight police brutality in court than have to defend myself in court for shooting a cop in legal defense for abuse of power. I do think that there are more good cops than bad, but when you encounter a bad one- if you don't feel your life in immediate danger- best to fight it out after the fact in the court room.
Cstone, your "be safe" is one of the most appropriate departing lines.