From what I’ve read, some cars do have movement/shock sensors, but they can be defeated by breaking the window in such a way as to cause minimal vibration to the vehicle, like a spring-loaded glass breaker. The guy who broke into my neighbour’s car took a metal rod or something, stuck it down between the glass and the dew wiper, and pulled back, putting pressure on the bit of tempered glass inside the door and causing it to shatter.
A mirror? How about a licence