Also a lot of people on here who know the answer will be away on holiday or visiting relatives at this time of year. We all give our time free too !
The key issue is whether you're prepared to take the matter beyond the council to London Tribunals. The decisions cited on this thread are at London Tribunals, so the full PCN penalty was in play; are you prepared to do the same ? Reason I say this, is because >95% of representations to councils and also TfL are refused.
To win, you need to trust what cp8759 says, and take the matter to LT