According to the article: "all charges that providers impose at their discretion, i.e., charges not mandated by a government." So they wouldn't need to include your school excise tax.
If they charge different fees depending on address (again, not taxes) then it seems like the intended effect to provide the actual price the consumer will pay.
That's basically what Audi has (at least in some older models): it's a scroll wheel that also works as a d-pad. It works pretty well with Android Auto (no experience with Apple Car Play). Mazda also has a similar-looking interface.
But it seems those two companies are moving towards touchscreens due to market demand.
If they charge different fees depending on address (again, not taxes) then it seems like the intended effect to provide the actual price the consumer will pay.