I doubt car manufacturers offer the ability to jailbreak their car OS to independent repair shops.

You’re looking for a hacker, not a dude who changes oil.

I doubt there would be any auto shops that can reliably deal with software side elements that aren’t the dealership, and the dealership would refuse.

They did exactly that, except they changed the name of the original subscription to “classic” and upgraded everyone to the more expensive plan without asking.

This is actually illegal in some countries, and I hope they get fined for it.