I think one day the FPV hobby will get reaped when someones plane crashes into a moving car. Sorry, but FPV over populated areas in the daytime is not a great idea, FPV at night over populated areas, REALLY bad idea. This is a prime example...what are the chances of two planes crashing head on? Slim to none, yet it happened. What are the chances you are going to land on someones head, or into a major intersection? Slim to none, but it could happen.
With all the press that FPV and 'drones' are getting, its not going to take much for the media to go apeshit on what would otherwise be a minor incident. (relatively speaking)