Relative calm returned to local roads after a Memorial Day week that saw 15 arrests on charges of drunken or drugged driving. East Hampton Town police have since made only two such arrests; village police, just one. Police stopped the driver of a 2002 BMW on Three Mile Harbor Road in East Hampton early Tuesday morning for failing to dim her headlights and wound up charging her with driving while intoxicated after administering roadside sobriety tests. Theresa Fisher, 24, was also charged with unlicensed driving.