Tie them to a CANNOT bus

Almost nothing is magnetic storage anymore. So unless you're spinning the magnet fast near the thing, you're not likely to affect the device at all.

And yet you can disable the annoying slow moving beeping in any normal EV without it shutting down the car.

Car manufacturers will do the minimum possible to not piss off customers. They’re not going to deal with all the craziness of what happens if the sensors stop working when driving, and how it would slow down the car, etc. they’re just gonna make it fail safe.