 As are both 95 and the Baltimore-Washington Parkway at 50 out to the Bay Bridge as well. This July 4th, hitch a ride, a free ride with MetroBus. MetroBus and trains are free after 5 p.m. Bring the whole family, celebrate, say no to traffic. Yes to free ride after 5. Sponsored by the Washington Metropolitan Area Transit Authority. Bob Endler, WTOP Traffic. 7 News First Alert Chief Meteorologist Veronica Johnson.