I think it depends on the business and the location.
Is it the kind of business where customers naturally spend time?
Are there lots of EV charging available in the area? There are websites and apps that will show you.
I expect 'charge stops' (like truck stops) to develop on long stretches of highway. They will have multiple services that take a bit of time; mani-pedis, barber, massage, tanning, food made to order, some form of entertainment, etc...
I think the charging will be free, maybe with a certain amount of purchases.
What service or entertainment would you like to use / see?