What they should do is tow your car down the highway while it’s charging and stick you in the cab of the tow truck, as I doubt people want to go through the trouble of changing into swim trunks every time they charge up their car.
The tow truck could tow a huge diesel generator package. Then the generator would tow your car. What a sight to behold. With careful Uber-type scheduling algorithms, the tow truck/generator trailer package would always be in use — no empty backhauls.