And I stopped listening right there.
Only fucking MORONS want this sort of thing.
When you're in a piece of heavy machinery, like a car, even if you're NOT driving it, you DON'T want to be impaired in case of an emergency.
So, drinking in a self-driving car is pretty much out.
Ah, I have a slightly different philosophy for catastrophe management, one that I find hedonically satisfactory and wish to recommend to you:
You don't want to be moderately impaired in the case of an emergency. Should the emergency prove relatively minor, slurring and vomiting while making your exit from the damaged vehicle at the crash site will be undignified and uncomfortable. Should the emergency prove catastrophic, you'll be much better off dying while deeply relaxed and pleasantly intoxicated, rather than indulging in theatrical heroics.
Whenever possible, try to either be ready and able to manage the situation to a satisfactory conclusion, or enthusiastically accept that the situation is totally hopeless and apply yourself to be business of dying as pleasantly as possible. Just don't fall between the two, which is the dreadful strategy-chasm that combines as much or more effort than option #1 with as ghastly, or worse, an outcome than option #2.
Anyone can make an omelet with eggs. The trick is to make one with none.