You may be able to unscrew the tail light to get access to the latch mechanism. This works (at least on a Lightning). May be worth a shot.
Edit: ok wait... I think the key latch does just the passenger seat. Isnt the front seat bolted on like a 1125? If so, pull up the back edges and unscrew.
Google "firebolt seat removal" and look at the images. I tried to link one, but they're not playing nice.