In this photo, which was being discussed upthread, there was some question as to what these orange arrows on the road were and what they meant. I have a theory:
http://i296.photobucket.com/albums/mm166/crankycrankerson/Jessica Ridgeway -CO-/101112s81.jpg
If you look at the WM truck you'll see orange markers beside the visible wheels. Up the road a bit, there is another set of orange markers on the road. I took a sticky note, and stuck it on my screen beside the WM truck. I measured the distance between the orange marks. I used a pen to put marks on the note where the orange marks are on the road beside the truck. I took the marked up sticky note and stuck it beside the other orange marks on the road.
I noticed the wheels on the WM truck are the exact distance apart (all the visible wheels) as the arrows up the road there visible in the photo.
Therefore, I suspect that the WM truck was moved after LE arrived. I further suspect LE put the orange markers on the road to indicate where the WM truck had been when they arrived. And then where it was when the truck was pulled to side of road. That is my best guess. And I've not had a can of Coke yet this morning, so if someone has figured this out already and posted this, then accept my appology.
Since I'm feeling extra smart today (lol)... I also measured the width of the truck and compared against width of the road markers in photo... they also match.