hacksaw...i'm willing to spend hours. couple of blades, fine, whatever.

angle grinder...no power source i know of where the bike is locked.

car jack...this isn't a mini-u, so it's a possibility.

and i can't bring it in at work if i can't get it off the rack. i don't trust leaving it out all night, though i'm probaby being paranoid...hey, it's my baby.