Or not..
A blown motor is a lot better than dead people.
The Prius doesn’t really have a “key”. The computer will prevent it from being shut off by simply depressing the “on off button” while driving. I think you need to hold it down to convince it to shut off while in motion.
Also, the “shifter” doesn’t really have neutral. Well, it HAS it, but getting to it is a challenge. All of this done with the usual motorist talents / mentality isn’t something I would expect.
As anyone here who rides a motorcycle can tell you, 99.9% of people have NO BUSINESS or even brain function to be on the road.