Their trucks damage the roads significantly more than cars. They should pay tolls everywhere based on the number of trucks they have. Since there are not that many toll roads. Huge fleets would provide good revenues to state road repairs. They can afford it because they have monopolies and some of their owners are members of the Federal Reserve.
Other than that I do not really care much about roads. They are nothing like they are in God foresaken Europe or elsewhere and I have a vehicle with high ground clearance and AWD. If people want to get a horse like Amish go for it.
BTW, I do not think 4 wheel vehicles or less should pay tolls unless it is a private road.