The section line roads were something I got familiar with when I lived in Western Kansas. With very few exceptions there would be a dirt road every mile both E/W and N/S.
Having grown up in NW Florida that was a new experience. I loved the area despite the fact that most people did not. I did get tired of the constant wind tho. People would often say there was nothing between you and the North Pole but a barb wire fence.
There are some reports by other chasers that a key road to the South (Rt. 81) was closed by police at the time they were trying to escape this tornado to the south.
I have no idea precisely where Samaras was or whether this contributed to his death.