I think that tax-payers should be the ones to pay for enforcement of regulations that are claimed to benefit them. Governments, local and otherwise, should be barred from using fine money for the 'general welfare'. To do so sets up a conflict of interest and condones extortion.

Instead, fine moneys should be ear-marked towards remediation and reparation of the 'crime' committed. E.g., in this case, all parking fine money could be put into a fund towards building parking ramps. In the case of speeding tickets fine money should go towards rumble-strips, guard rails, additional lanes and other features that make it safe to drive at higher speeds. Etc. Etc.