The KFDM 'news staff' better check their facts: FM (Farm-to-Market Roads) in Texas are well-paved state highways with wide rights-of way; none that I know of are "two-lane dirt". (I should know; a FM Road runs in front of my home...)
BTW, I am very glad we live just slightly north of the debris track. I expect that finding shuttle parts (or worse) in your yard would be quite traumatic.
One of the most poignant scenes I saw on TV today was that scorched Columbia shoulder patch lying in the grass. Just think: that patch was on an astronaut's shoulder a few hours ago...