But again, my comment wasn't about this system, but drunk driving in general.
I acknowledge that situations exist where drunk driving is the only option (like with the flood/tornado/vulcano examples mentioned in other posts). But for most scenarios there is often a better solution that doesn't involve drunk driving.
I like living in snowy places. I could see this being a real problem, just like snowy conditions mean self-driving won’t work for me for many years in my only vehicle.
I don't want a computer making the decision as to whether I can drive the car I paid for or not.
Maybe when society finally makes its final swirl down the toilet and we're finally not allowed to use private vehicles on public infrastructure, being forced to use government/corporate sponsored vehicles - maybe then they can tell me how to use _THEIR_ vehicle.
Your wife is bleeding out and every second counts? Sorry, citizen, you are driving too erratically. Killswitch. Call an ambulance if you need help. The nearest one will take 15 minutes to arrive and another 10 to get to the hospital.
Pissed off a bear? Sorry, citizen, you are driving too erratically. Killswitch. Call the forestry service if you need help. The nearest ranger is an hour away.
Your town is flooding and you need to get out by any means possible? Sorry, citizen, you are driving too erratically. Killswitch. Call FEMA if you need help. They'll be here in a few days.
Caught in a blizzard with the wrong tires and are sliding around as you limp your car home so as not to freeze to death? Sorry, citizen, you are driving too erratically. Killswitch. Call roadside service, but don't hold your breath; there's a killer snowstorm out there!
In critical danger but your phone is dead? Sorry, citizen, you are driving too erratically. Killswitch. You should have planned ahead and charged your phone.
Etc, etc...
Oh the horror flicks are gonna have a field day with this trope.