It would be ridiculous if the car just shut down and stopped immediately. I really shouldn’t have to point out that it obviously doesn’t work this way.
In-vehicle breathalysers have existed for decades. They way they work is they give you a warning that the vehicle will shut off in X amount of time. Eg 5 minutes. The car doesn’t just shut off without warning leaving you without boosted brakes or power steering mid-corner.
With modern technology, most cars could also take over control from the driver when they deem safe to do so.
If you are driving like your life depends on it, you just go "Why is my car beeping at me?" and either don't worry about it, or try and figure out what is flashing on the dash, if you can spare the attention, speaking from experience, while drifting in empty corn fields, the car was beeping at me about a flat tire...
If your car just cuts off after beeping at you for something it has never beeped at you before for, you are likely to just continue straight on ... thus ending up exactly in the situation you say it won't work.
I’m just saying that’s how the old systems worked, as that was a limitation of the time.
A modern system doesn’t have to beep. It can tell you what it’s doing, in your language, visually on the dash and audibly. Also, there’s no reason a modern vehicle designed for this type of system needs to cut all power immediately. It could cut power or limit speed over a period of time, allowing the driver to safely pull over. And there’s no reason for it to ever cut power to steering or brakes.
I think a lot of people, yourself included, are having a visceral gut reaction instead of looking at this rationally. The people responsible for the safety of vehicles aren’t going to write a law that requires a vehicle to cut its steering and brakes while the driver is cornering, when there are so many alternatives that would be equally effective but safer. You need to take a step back and apply logic and common sense to the situation.
In-vehicle breathalysers have existed for decades. They way they work is they give you a warning that the vehicle will shut off in X amount of time. Eg 5 minutes. The car doesn’t just shut off without warning leaving you without boosted brakes or power steering mid-corner.
With modern technology, most cars could also take over control from the driver when they deem safe to do so.