Earlier quoted context omitted.
Or have the car rendezvous with the nearest police car which wouldn't probably leave the thief time enough to exit. Even if he successfully gets away how likely is he then to steal another Tesla? Even if a hacker sells them a zero day hack then it will only last a single day before Tesla updates its entire fleet.
imagine a kid locked in a toasty car for a whole day before the update gets deployed
Then you do the same thing as you would in an unconnected car, break a window.