There is a waterproof "fuse box" in every car, similar in function to breaker box in a house, on front firewall(even for rear-engined cars!). "Pull a fuse" means removing a fuse for offending subsystem(ECU) to simply disable it, such as ABS, as clean as `apt uninstall sl` would go. What the guy above you is saying is you should be able to turn off "security feature" altogether and the car should revert to an insecure car.

But considering that Teslas are infamous for authenticating every start/stop of individual cars between the key and the infotainment computer and a datacenter in California...