Usually the fuse box is accessible right under the dashboard. Remove the ignition fuse and keep it in your wallet, and the car won't start, without any clear message about what's wrong (most of the time).
I want this, but on my electric car. Fuses aren't usually so accessible. I made a switch like this on my next (gas) car, but I could get the manuals and find the spot in the wiring diagram. I have no idea how to do this for a tesla. I don't think the fuses are so accessible in evs.