Maniac on your left, what can you do?

[PorkchopDJG]

Bad situation at the card club the other night. I sit down at the 6/12 LHE table and soon realize that the guy behind me is pretty much raising every hand. I can no longer limp without it being 2 and possibly 3 bets back to me eveytime because people are isolating the maniac. Then when I wait for good hands and raise usually everyone including the maniac fold behind me and I get nothing. Also if I just limp with big hands I am usually having to still face several opponents because maniac will raise and several behind may also come along as well but not re-raise because they fear I have something big. It also wasn't helping that the maniac was hitting hands, especially against me.
Eventually he burned through about 3 racks of yellow ($600) and left but I seemed to be the only one at the table that didn't get any of it. It also should be noted that nobody left the table during this time so I couldn't change to a more favorable seat and also the waiting list was huge so I couldn't change tables either.
What are the best options in this situation?
How would you react and modify what you are doing?