Numerous Tesla owners say they've been trapped inside their EVs after they lost power.
(www.businessinsider.in)
I bought a new car recently, and I looked up how to get in, open the hood and jump start it if it has a dead battery, how to get in and start it with a dead keyfob, etc before I ever took delivery.
A bit of knowledge turns a major problem into a 5 minute problem. That said, it sounds like following the directions and using the manual release didn't work very well.