A prescription drug compliance and reusable discount system having enhanced patient privacy that provides reminders and offers incentives to patients to continue the taking of prescription medications. The external and internal portions are separated so the transparent filler material, when set, forms a smooth and featureless surface. A hitch mechanism is also used to provide hinged movement between the tow bar of the towed wheeled vehicle and the mounting bar of the towing roadwork vehicle so as to permit independent elevational movement of the towed wheeled vehicle relative to the towing roadwork vehicle. The host transceiver is configured to establish communications with each of the plurality of RTU transceivers.