Which they did. Nevada now has laws governing autonomously piloted cars, and California is working on it, last I checked. If they can get such vehicles legal

Which they did. Nevada now has laws governing autonomously piloted cars, and California is working on it, last I checked. If they can get such vehicles legal and available to the general public in California, it will be legal everywhere else within a year or two at most. California sets or has had the ability to set a lot of standards for the country, from vehicle emissions, textbooks, to now, apparently, driverless cars.