In no case shall vehicular access and egress for accessory off-street parking, public parking facilities, permitted or required accessory off-street loading berths or the service entrance to a building, be located within 50 feet of Fulton Street or DeKalb Avenue within the Fulton Mall Subdistrict. No curb cuts are permitted within the Fulton Mall Subdistrict within 50 feet of Fulton Street or DeKalb Avenue.