I'm 99.9% certain these vehicles would be forced to fly over existing roads. And it's likely the final product would be autonomous to ensure no one could do a random fly over of your house.
The FAA would never require aircraft to fly over roads. These things (if they can actually be made to work) will be subject to the same regulations as any other general aviation. We are decades away from having autonomous flight control systems which can be certified for carrying passengers and flying through regular airspace.