snap a picture with date & time stamp activated of your car & save it.
plus if you know the known routes of that car ask somebody to follow and check where it end up. Visit customs office in your town and report the issue they will take care of it. The hawks get Clean money reward for NCP vehicle arrest.
This was done n KHI, and 1 Toyota Harrier suv was taken into custody by police and customs took custody of vehicle from Police. anybody wish to verify this can visit customs vigilance office near Karachi american school Harrier case of July 2015 arrest is very juicy story.