Enfield, code 23 parked in a place not designated for class of vehicle, Church Street loading bay

Hi Chaps.

Elderly father (late 80s) left his vehicle in an area he later realised is a loading bay with restrictions, as seen in the linked images.  Of-course he had not realised it was a loading bay else he would have parked anywhere else with his disabled blue badge.

Any assistance with the appeal appreciated.

Thanks


My thoughts:

• There are no road markings to indicate this is a loading bay. Is this not a requirement?
• The only signage is a single sign (small) that covers the entire loading area so easily missed

PCN:


Google maps (note the road markings have changed since).

Image attached to the PCN:
  

Few photos I took to show the area in questions:
  

I suggest he write in to say he made an error, and thought his BB would apply in the bay. Terrible sorry etc. Post up their response when you get it.