I'm frankly astonished it took people 3 hrs to smash the windows and get out. I'd have politely asked the operator to open it up and let us all out after the 1h mark and if they didn't I would smash the shit out of a window and crawl out. No chance I would sit in there for 3 hours.
But why smash windows? The doors aren't speed locked because the train isn't moving, so you can just use the emergency release on the doors and then pull them open. It's not trivial but neither is smashing a window, and the doors are closer to ground level (most adults should be able to sit on the door sill and lower themselves to ground level fairly comfortably)
