Where they winning cases on merit or just so many cases filled that the court could not process the number of cases? I would be interested to read up on that if you had something on that.

I know of a situation where a municipality had not done the required traffic survey to justify the speed limit. In that case, if challenged in court, tickets get dismissed. One individual knew the law, was constantly cited, kept going to court to get the tickets dismissed. Eventually the individual filed a RICO suit against the government that forced them to do the traffic study, which resulted in the speed limit being raised.