In doing research for DNA or pretty much any other topic, I frequently come across unusual stories. In this case, here are several stories that directly or indirectly are DNA-related and involve Kentucky.
First, this story, https://abcnews.go.com/Health/blue-skinned-people-kentucky-reveal-todays-genetic-lesson/story?id=15759819. I was aware of this story for a while, but I never thought about it in the context of DNA until last night. You can learn more about the family on Wikipedia: https://en.wikipedia.org/wiki/Blue_Fugates.
The next Kentucky DNA case was this one, https://www.mystateline.com/news/dna-test-shows-kentucky-teen-is-not-missing-timmothy-pitzen/1900513185.
Possibly the strangest Kentucky DNA case is this one: http://www.wave3.com/2019/04/01/residents-concerned-about-dna-for-cash-transactions-louisville/. Not sure why they are collecting DNA, but it does raise some questions. My suggestion to the station would be to see if they get the tag number of the van and trace it.