this story seems fishy. they parked at a school and she couldn't get anyone's attention by honking the horn? you would have to be in the middle of nowhere to not here a car horn. also please tell me she was smart enough to use the horn.
Geez did you not read the story?
When investigators tested the car, they reportedly found that the doors would sometimes lock on the inside and outside when the key was used, disabling the horn and making it almost impossible to escape.