I live in Bowling Green. So, you can guess about the sign situation.
I did see two farms with signs right off I-65 with good sized Rand Paul signs.
I threw up one a few miles south of Bowling Green on 65 for the SEC Tournament, I'm working on getting something on 75 during the 75-64 merge in Lexington, but haven't had any success yet (it looks like I have a spot just south of the merge on 75)