Electronic ignition interlocks have been common on most vehicles over the past 20 years too... the only reason you can't remotely prevent most other cars from starting is simply software.
https://www.toyota.com/connected-services/remoteconnect/
https://owner.ford.com/fordpass/fordpass-sync-connect.html
https://www.nissanusa.com/connect/features-apps.html
https://www.hyundaiusa.com/us/en/blue-link
etc...
Since all the hardware exists, all you have to do is find an exploit: https://www.wired.com/2015/07/hackers-remotely-kill-jeep-hig...
Doors and windows are locked and you have 120 seconds.
I am quite scared of internet connected cars that can steer the wheel automatically though. That is madness.
Secondly, Tesla owners tend to be more affluent. Imagine a cyberpunk world where ransomware attacks are a fact of life: buy cheap cars with reasonable security and minimise your total cost of ownership. Heh.
The attendant had been outside, so he saw it happen. In fact he had pumped the gas (this was not self-serve).
And when I came back, holding the nozzle in my hand, he was dumbfounded.
I did this in the late 80s. The handle ripped off and was not magnetically attached. However, gas did not spill from the hose.
I drove back to the station and handed it to the attendant sheepishly. He said thanks.