That's not all exactly correct, I believe. It will be very hard to spec the vehicle to be as inexpensive as they claim and in 2027 (Sept.) all new cars must have onboard surveillance. If the car detects the driver is impaired, it won't start. Unless there's some kind of exemption for small volume or something, Slate will have to add it.

EDIT: Looks like this is only partially true. The most nefarious part either did not pass or hasn't passed yet. Apologies for the partial misinformation. Here is a reference:

new-cars-by-2027-what-the-law-actually-requires/