BALTIMORE, MD (AP) – Maryland legislative auditors found glitches in the cashless tolling infrastructure at the state’s bridges, tunnels, and express lanes overbilled motorists thousands of dollars. The Office of Legislative Audit’s report on the Maryland Transportation Authority comes about a year after the state announced it ceased cash toll collections and moved to fully electronic tolling systems. Problems included electronic tolls incorrectly counting vehicle axles and overcharging motorists, customers billed twice for passing a toll once, and overbilling for some with commuter plans.