This happened to friend of mine along that stretch of road a couple of yeards back and when he was crawling out from underneath the car the farmer was ontop of him ranting about his speed and how he could hear him from pump lane. That was a load of BS as he was driving a rental car at the time which was a bout a week old and was running almost silent. The word is the farmer puts diesel on the road in that area to slow people down??? which even the police had suspected at the time but could not prove. Very dangerous stretch of road in parts and look out for the rainbow effect on the road in the rain and you will see the diesel.
If he did that to me and caused an accident, he'd be picking his teeth up from between his blades of grass the horrible little oik.
I love the lanes, I liked them even more before the bypass was built, speed limit was such that you couldn't break it without being dangerous, so it was always a nice road to practice hustling along when I was doing my IAM.
If there is a person putting diesel on the road, then that is attempted murder in my eyes.
I hope the person who did come off the road is OK, accidents happen, and to be honest those lanes are a decent place to drive a bit faster (if such a thing exists) without causing too much damage if you come unstuck.