Gary, good point on selling "Parking"! I like that presentation of a loophole!
In the long term, where as commodity prices are regulated because we consider things like Electrification and Heating of households a basic need in this country and thus it's is the general consensus that it must be a regulated market to keep the potential monopoly power of a utility from gauging customers for the basic commodity. I'm not here to argue for or against such regulation, but I will state for the record that I support it.
However, charging an EV at a "private" charging facility (as opposed to a "public" one, which, as publicly funded should be, IMHO, free) would be better served by allowing market forces to dictate price. Since away from home charging should hopefully be a luxury and not a need for most EV drivers, it would be fair to allow any private charging facility to charge any price they see fit. If the price isn't reasonable, people won't use the service so there is incentive to set a reasonable price, and this will keep costs down. If multiple merchants build charging facilities, like multiple gasoline stations, then they will compete against each other to get business to again lower costs. The danger would be if only 1 business got exclusive rights to supply electricity at a rest area on the highway. But we don't generally allow exclusivity to a specific petrochemical provider at most rest areas, and if we do, they will, as a monopoly provider be regulated as part of the highway commission of that state. Generally, though, it's easier for a state to just give 2 petrol providers contracts to provide service at that station, and so too should they just ensure that 2 separate private EVSE providers should be commissioned to provide service at a given facility, again creating competition.
This, of course, is not how it is -- Yodrak has explained how it probably really is -- but it is how I personally wish it to be. The Free Market isn't always the answer IMHO, but in this case I think it perfectly fits.