According to the Telegraph here, local authorities have raised income via 'irregular' parking laws being applied.
"Council parking controls have to be enshrined in bylaws, called Traffic Regulation Orders (TROs). The signs and markings used to impose the restrictions have to be displayed and painted according to Department for Transport instructions before tickets can be issued, with only "minor deviations" allowed.:
I believe this is to be a significant story- public sector workers are deliberately working in a deceitful way against the public. Will be watching this topic with interest.