OK, I gotta know :
If as you say, you couldn't get into the car, and the trunk was also locked, WHERE DID THE WRENCH COME FROM ?
Do you always carry one around in your pocket ?

Just kidding, and congratulations !!!
I know that you must have been going between home and the car, unless you were using your cell for the forum.
I think I would have used something made of wood or rubber however to prop the window.
Them puppies ain't cheap if you chip or fracture it.

BTW: I Google Map'd your town - that is one beautiful place. No overhead wires, telephone poles etc, and all the buildings / properties look really well kept.