^^^^I-57 south of Marion, IL.
Getting back to Ben's point, RE: Passing and re-passing the same car over and over.
Each month I head to Indy to see my folks. And each month there's at least one *expletive deleted*tard doing this.
Now, keep in mind that this is northwestern Indiana on I-65. Other then the Wabash valley by Lafayette and the occasional overpass, I-65 between Indy and I-80/94 is billiard table FLAT. The speed limit is 70 and I will set the cruise for between 70-75 depending on how fast the trucks are going/traffic.
And sure as *expletive deleted*, there will be some *expletive deleted*tard that I will pass, then they will pass me, then I will pass, all the while I never touch my gas pedal or change the cruise speed. While I only have a Flat-4 under the hood, it will hold speed on the overpasses, so my speed is constant. But these jackwads will go from 60 to 80+ and back again.
I would hope that they are using a "personal electronic device", because they sure are *expletive deleted* with me.