I'm trying to picture your situation! Where is the bottom of the door?
Up near the ceiling?, halfway down the door opening?, nearly down to
the floor? ... where did it stop when it retracted?

The "emergency" release which you say will not release is likely jambed
.... is the metal bar (attached to the door at one end, and the chain
drive at the other) still close to vertical ... or is it cocked at an
angle?


wrote:
The door must have hit the bar pretty hard before retracting. The cable
on one side ended up looping around the tension rod and the garage
door was (and is still) stuck crooked and lopsided in the open position.