You know the force from these thrusters is going to injure a pedestrian and the whole idea will be scrapped.
They can’t even build a proper Mini anymore because the hood was so low it elked pedestrians face first into the windshield.
It's never going to be street legal, and I doubt there was ever a plan to try.
The cybertruck is so dangerous to pedestrians it would never pass homologation pretty much anywhere outside of USA, and yet it sells there. If the roadster is sold anywhere it will be there too.
If the flying version is ever sold (unlikely) it will be subject to flying thing rules (FAA). Best case it would be like buying a used F1 car from Ferrari. They retain possession and you get to occasionally fly in on the private jet and drive it under supervision on a racetrack.
It’s cool tech demo. I’m not expecting to see one fly in private hands ever.