More than 1,500 drivers have been ticketed and 150 allegedly unsafe vehicles have been picked off the roads as the hordes headed back from cottage country after the long weekend.
Among the worst offenders were the U-Haul rental company's trucks, OPP Sergeant Cam Woolley said.
Out of 15 of the company's rental trucks that were inspected, 11 were pulled off the road.
Sgt. Woolley said that most of the 1,500 traffic violators were ticketed for speeding.
The fastest car, an Acura, was clocked at 180 kilometres an hour.
"[The driver]said he forgot his wife's birthday and was rushing to get a gift," Sgt. Woolley said.
"We looked at the Highway Traffic Act and there's no exemptions for angry wives."