ever seen a movie called "monolith" ?
its somewhere between a C and B movie and only thing thinner then the story line is the actors supply of talent
the story fits in here though, the girl is driving a new car, and it is the pinnacle of safety and comes with a "vault mode"
when the vault mode is activated the car becomes impenetrable...and because the car is "new" this vault mode can be activated from the phone
so, they girl (who has no place being a mom) is trying to keep her kid happy and gives him the phone while she steps out and wouldnt you know it...the kid locks the car and the mom spends the rest of the movie trying to get it back open
