Yeah, I think all you can do is wait him out. What we might like to do will only land you in real trouble and you would wind up losing in the end. Eventually, when he realizes that he will not be able end your endeavors, he will grow weary of the game and stop. If you harass him, it will only encourage him to continue. So, in the mean time, I would look for places to collect that he does not frequent or have any influence in. When you do encounter his interference, be sure to tell the truth about who he is and what he does. Do not slander him, but speak honestly about what he has done to you personally. People will eventually come to know the truth. Until then, never give up.