I was thinking of the taxpayer paying. Doing it alone for the environment could be a worthy cause (or just for cleaner air if that floats your boat).
One could at first skip rough/thug neighbourhoods, and like you say, install in public areas for maximum benefit. If 120V is cheaper, then that might be worth a shot for more run down places since it'll be on all night. Build for durability and minimum maintenance.
People are saying that the interior is concept-like atm (I mean there aren't even any vents yet). Also, you'll probably have buttons on the wheel like the Model S.
Besides, you can get a refund of the 1000 at any time.