The Attorney General and the Secretary of the Treasury may prohibit—

((1)) a vehicle from parking or standing on a street or roadway adjacent to a building in the District of Columbia—

((A)) at least partly owned or possessed by, or leased to, the Federal Government; and

((B)) used by law enforcement authorities subject to their jurisdiction; and

((2)) a person or entity from conducting business on property immediately adjacent to a building described in paragraph (1).