Old town parking issues

Vehicles parking on double yellow lines on Public Hall Street is an accident waiting to happen - Weatherspoon's getting deliveries means the road is blocked and no one can get in or out of this street. Also if you are exiting as there is only road available (when it isn't blocked) if a car comes in it is going to cause an accident. I had to wait to turn right into Public Hall street to get to work and as there was a delivery van blocking the road. I pulled into the bus depot so cars behind me could move past me and I got shouted at by another driver for holding them up. It is awful on Public Hall street and also in the Old town itself and something needs to be done.