In addition to the comments over the fact that there was "nothing that can be done" there was an opportunity when the alcohol licence was put in to restrict loading times, however it was not within the licensing restriction guidelines.
It is time that this entire stretch of road was properly controlled and enforced. A browse along the Google street view (BN12AD) will show the minor state of parking abuse on this road. Highway code 243 covers this situation nicely
DO NOT stop or park opposite a traffic island or (if this would cause an obstruction) another parked vehicle.
