I called the service department at my Ford dealership and took the car by there yesterday. I wanted to see if they could manually release the seat. I'm in the long, drawn out process of moving and really need the space back there to move things. They looked and said they weren't able to do that without taking the seat out, which the guy estimated would be $300 in labor plus any parts needed.
It's not really on my list of things to do at this point. Frustrating issue, and I'm not convinced there's not an easy fix. Seems like manually releasing the seat wouldn't be a big deal if you knew how the thing worked. I have a hard time telling exactly how it functions. The access to the mechanism isn't great, so maybe the seat does have to be removed to get to it.
Just wanted to update...that there's really no update.