Can you see the writing on the building in this photo? It says "Revenue Point." Several places along the road, there was some guy standing by the road with a rope pulled across the road, held up on a stick. He would ease the rope for some cars to let them pass (maybe they had an EZ tag), but the rope would stay raised for our bus, blocking our way. We did pay a fee at the first one, but our police escorts talked to this guy and we were allowed through without further payments. I don't know if they are official or not, but I could make a guess about it.