I guess they could add an annoying beep every 5 minutes to make sure the switch is switched off if it doesn't need to be on. Or have a function that the engine

I guess they could add an annoying beep every 5 minutes to make sure the switch is switched off if it doesn't need to be on. Or have a function that the engine can't start if the switch is on (because during an update the engine should be off, although obviously the onboard computers need to be on).