umm… im not debating the logic of the law, but if you are on a 1 hour drive or more it is 100% impossible to always be driivng within 5mph of the speed limit in the correct lane the entire time.
3mph under is excessively aggressive ticketing unless the individual was actually causing a problem or had been giving multiple warnings in the past.
There is a big difference between being a hazard on the roadway and being a nuissance on the roadway.
ticketings function in this case is primarly revenue generation, not law enforcement.