Well I pulled the seat hoping that would help, but it did not.

I have tried the vice grips but all they do is go around the head of the bolt. They seem to not get enough friction to hold. So I am trying to figure out how to dissasemble the seat enough to get it.
Will removing that silver ring
(in the red box) cause that piece to slide out? If that happened I would have enough room to get the bolt out.

Does the bar that the
Blue Arrow points at move the seat up and down. There is some sort of motor
(See Yellow Arrow) that must do something, I am not quite sure what. If the seat did move up and down in the rear or some direction to get that piece out of the way.

Again, any and all help would be greatly appreciated.