I've had this issue before, a few times. Trying to remember what made it snap back to normal. I want to say it involved using my FOB to force it to close (I enabled the windows up/down option with VCDS). You'd hold the interior button forward, it would go down and close, but pop back up as soon as you let go.
Sounds like a bad motor then. There is a chance it could be a module that failed, but I'm not 100% about that.
Edit: I'm glad you saw the humor though!