Fast forward two weeks and my car was found. When I got it back, a credit card receipt for fuel at a nearby gas station was sitting in a tray in the center console. The date and time were the same night as the theft, after I had parked for the night. I first rang the station to explain and they confirmed they had CCTV and would hold it for the police, then I rang the detective assigned to handle vehicle thefts locally. He seemed interested and said he'd send a uniformed police officer over to follow up.
While waiting, I checked the trunk and found some trash neatly tied up in plastic bags with more receipts. The officer showed up and could not have been more openly hostile and bored with the whole thing. Big sighs, complaining that he was wasting his time while he dusted for fingerprints and collected the receipts. I waited a few more days and rang the gas station to see if the police had followed up - nope.
Years later I was on a jury for a car thief and I was really impressed by the professionalism of the police in tracking down the thief, and the extra efforts they made. They were all over the CCTV footage and tracking the usage of a particular store's membership card that the victim had left in the car. Same county, different police department though.
I guess the point is that the tools are there for law enforcement when they need them. But there is still no technical solution for when someone is a lazy fuck and can't be bothered to do their job.