That will require entering the car, which may be easy enough if the owner is present to let them in. If they’re going to force entry, I’d much rather the car be in a police impound lot after that happens, than just left on the street someplace.
Another big issue, which if the police are familiar with how Teslas work is an important reason: Teslas don’t save an hour of recording, they save recordings made in the last hour, which is a very important distinction. So when the car is parked and turned off, any recordings made in the last hour of driving are saved. When the car is turned back on (for example, by opening the door), any recordings older than an hour are deleted, unless they were explicitly saved (through manual or automatic methods).
Sentry mode is similar. It will save the previous hour of recordings, plus any 10 minute period in which an event occurs. So even if sentry mode recorded an event, the video file may have been deleted by the time the evidence is going to be collected.
The deleted videos may be able to be recovered, which means that the USB drive should really go into the hands of an expert, rather than just some random cop who’s going to plug into a laptop to copy the files.
Good luck anywhere in the US. The police are pretty much not responsible for damage they cause. See any number of cases where a swat team destroys some innocent person’s house because a fugitive might be inside.