The title is a bit over-blown, in my opinion. But it is a great idea that could work.

awesome idea - definitely has a lot of potential.
of course people would have to look into how resistant the surface would be to, say, wheel friction from instant breaking and of course extreme temperature conditions. Looks like an exciting concept though, with a rather high start-up fee but ideally reaping enormous benefits!

With today's prices it would be the same like covering our highways with gold. That what government was called for: to make decisions about it on federal level. So far there is not enough such panels even for the roofs, where they are suppose to be installed first of all.