wow, stealing car parts is more than a one time thing. They also steal spare tires, and pretty soon you will go outside and see your car up on cinderblocks.
SO is there insurance for street theft? $475 would cover your deductible at least? no?
Okay if the police can't stop this, how about an unemployed entrepeneur who can stay up at night and guard cars? Ya pay dogsitters, how about carsitters? You and 20 neighbors pitch in and pay the sitter $10 a week, email your parking spot and your photo of you and your car, and somebody watches those 20 cars all night. you can only park on certain blocks, blah, blah, blah - any takers?