I'm probably a bit more aware of this than many - I ride a motorcycle with only 200 or so km (maybe 130mile) range, and take it _lot_ of places where keeping a good running tally of where the next fuel options are, and how I'm gonna get home if the next place happens to be shut.
I suspect that in under 5 years, there'll be roadside assist vehicles with big 3 phase generators on board that are capable of Tesla Supercharger kind of rates of charge.