People who live in a high-trust society and not a shithole? I leave $10k of stuff in my car all the time, and it would be super inconvenient if I couldn't.
In such places folks feel comfortable leaving $10k worth of gear in their vehicle, law enforcement would most likely follow up if you had the gear tracked to a known location. I've seen such happen with the items being recovered and the thieves arrested in a matter of hours from the theft happening.
In places where leaving $10k of gear in your car is considered foolish and the victims are blamed as many are used to these days, law enforcement is useless and the victim of the theft laughed at as being hopelessly naive.
People who live in a high-trust society and not a shithole? I leave $10k of stuff in my car all the time, and it would be super inconvenient if I couldn't.