Oh yeah, that's bullshit. Here in ohio a divided highway like that is a 60mph posted limit, though it's somewhat a 'gentleman's agreement' that you don't go well past 70 on those kinds of roads here.

Also, like I said, cops doing the same shit they accuse me of criminal speeding for, as do >90% of drivers pon this road (gee i wonder why state troopers live on this 8 mile stretch despite there being one for every 90 miles of highway in my state)

I'd bet you that the county the stretch of road is in is making a big stink about people speeding, and or the county is using speeding tickets to fill the holes in their budget. The time I got booked for speeding (90 in a 60, on the same type of road), when I went down to the county courthouse to pay it, I noticed an awful lot of speed limit traps on my way down there.