From the don't-try-this-at-home department....
The white car is going the WRONG WAY up the exit ramp!
I was just about to dial 911 when he slowed down and pulled to the edge, then slowly moved forward to a spot where he could turn around in the dirt next to the ramp.
I'm going to guess that he's not familiar with the area, and was using Google Maps for navigation, because they don't show the recent (and not so recent!) changes at this junction. Old highway 20 (the road I'm on) from where this ramp ends has been dug up from here to where it met US 411. Google Maps navigation was probably telling him to turn left, and since he was at the (now) end of the road...he did!
(OSM was also incorrect here. I've take care of that. The torn-up bits of road is fairly recent, maybe in the past 2 months.)