DONT BREAK THE GLASS!!!
if you peel the seal off around the bottom of the drivers window and let it hang you can knock the clip off that holds your window on the regulator.
then take your window off the regulator, slide it down carefully and get your keys or open the door. re-assemble and done with no damage what so-ever!
Rip the door off
+1Rip the door off like on the expendables 2