car missing

On June 2nd, my car was towed due to illegal parking on Marlborough Rd. between Caton & Church Ave.s.

I've been calling 311, Navyyard, Marshalls, Police, but they have no record of my car.

But my car was def. towed!
I made a police report, and then the police officer also said it was towed since there are some evidences.

I haven't yet found my car yet!
I think a private tow service towed my car and failed to report to the police, or somebody in the process screwed up the record about my car.

Anyway, I need suggestions. What can I do to find my car back??