Oh no, he didn't get done, it's just that we realised how confusing it all was. I certainly think there is a case for looking at each entrance to each different CPZ to see if the signage is clearly visible. I've certainly noticed cases where it is dangerous to view them, one example where the CPZ sign is placed at a road junction and pedestrian crossing, where a driver will be watching out for traffic turning on to the main road and people crossing. The expectation that the driver should also be able to read and comprehend the sign at the same time would be ludicrous.
Having 33 different CPZ is clearly very confusing and if you miss a sign it would be almost impossible to gather whether or not you were able to park at a given location, requiring you to either park the vehicle and go looking for it only to find you have illegally parked and risk getting a PCN, or to drive around again, this time focusing your attention on the side of the road as opposed to on it. In Camden this is particularly dangerous as it is home to the largest open air market in Europe where pedestrians routinely walk in the road and cross where ever they wish to avoid the large crowds on the pavement.
I suspect most people either see one sign and believe it covers the whole area, not realising they may have passed through at least one more CPZ. Certainly most drivers will be focusing on not running pedestrians over or crashing than scouring every inch of roadside for a change of CPZ conditions.
Anyways it is something I might look at at a later time.