So, isn't it the case that an AirTag is only useful if it's connected to an AppleID, so the the location alerts can get back to the AirTag's owner? Shouldn't there be some scenario where the police can contact Apple and say, "we found this here AirTag (presumably) surreptitiously attached to someone's car - please tell us who owns it" (where "please" may be in the form of a court order, signed off on by a judge). And then they visit the would-be thief (or crazed ex, or whoever) to ask some questions.