I had a thought:
We need a collapsable, easily stored appliance that fits over the hood of the average car. The appliance would be rows of baby doll heads, arms, and legs. Just littered with creepy doll parts, like a skin of nightmares.
Whenever you park the car in a sketchy neighbourhood, you simply attach the hood cover on your car and leave.
No one would want to steal the doll car. No one.
"Nice car but it's covered in dolls. I don't want to know who drives it or what they do inside it. Just move on, man."