No person shall park a vehicle within an alley in such a manner or under such conditions as to leave available less than 10 feet of the width of the roadway for the free movement of vehicular traffic. No person shall stop, stand, or park a vehicle within an alley, in such position as to block the driveway entrance to any abutting property except for the expeditious active unloading and delivery or pickup and loading of materials or freight. In no case shall the stop for loading and unloading of materials or freight exceed two hours unless freight is being actively unloaded or loaded. (Ord. 13-06-332 § 4)