I had a phone stolen recently at knifepoint (attempting to sell it on a classifieds site). When I told the police I could make them come back next day (posting another ad, etc) they wouldn’t give a shit.
I'd argue they would have to act quickly though - there was an alarm going on the dashboard when the car was started.
I would assume because of the short timeline, the novelty of the technique, a lot of paperwork being involved, and possibly a whole different police department that would have to do it.