We have a fuel tax for roads. If you drive more you get taxed more because you use more fuel. Heavy trucks that do the most damage to roads also pay more in taxes for roads since they use more fuel.
This black box thing is about Agenda 21. Move (nudge) people out of the rural and suburbs and into the cities where they can be controlled
Federal fuel tax per gallon:
18.4 cents = gasoline
24.4 cents = diesel
States vary all over the map on their charges.
States plus Federal numbers:
http://en.wikipedia.org/wiki/Fuel_taxes_in_the_United_States