I sincerely wish they would do that here in Ohio, where you get the people who camp in the left lane doing 65 at best. I don't know who are the worst offenders - those from Ohio, Michigan or Ontario - they are all equal opportunity rage inducers.
I've lived in Boston, D.C., NYC. Ohio is awful for buffoons who curb crawl in the passing lanes. Even worse is they are too timid to pass trucks, apparently thinking it safer to drive alongside a tractor trailer in its blind spot at 55mph for 20 miles.
Michiganders are afraid of going their normal speeds in Ohio. Ohio tickets and planes are legendary.