I trapped a raccoon in my chimney. So... what now?

This raccoon has been destroying my roof and scaring my dogs at night for months and I finally had enough. I crawled out my window in my underwear with a flashlight and a Microtech Halo in my teeth (admittedly idk what my plan was here, just enjoy the imagery) and tried to scare it off the roof but it crawled down my chimney instead. I trapped it in there by stuffing some heavy blankets tightly inside but that's not exactly a long term solution. I've got the gas shut off so I don't kill myself and my dogs with carbon monoxide from the water heater -- so I did at least plan that far ahead, but not much further... I don't really want to hurt the little guy but I can't have him continuing to tear apart my soffit for shelter.