Two words: LARGE HAMMER.

Seriously!

You'll want to get a length of steel to use to like a chisel, so you can get the force from the LARGE HAMMER to the rear of the side of the seat mount that's most rearward. Or from the front, the part of the seat mount that's most forward. Either way, you need to get the two sides even so you can move the thing. It sounds to me like one side didn't engage the catch and got jammed too far back, cocking the seat to one side.

I'm not familiar wiht your glove box latch, but it sounds to me like you could get a wire or something and reach in and trip the latch on the inside. Either that, or find a matching replacement door and just rip the stuck one off.

You sound like you have the opposite luck with cars that I do. For me, everything works, always. When I drove a tow truck back in the mid-70's I'd go on a call and try to start the broken-down vehicle, and they started right up virtually every time.

When we lived in Nebraska and drove $25 cars so the rust would have somnething to eat, I could drive one forever. Then as soon as I sold one, it would stop running, usually before the buyer even made it home! Go figure...