Russellville, Kentucky Roadblocks

This roadblock was set up Saturday night about 9pm on Memorial Day weekend 2008, on Rt 79 just south of Russellville KY. There were 6 police vehicles (3 setting on each side of the road) with 6 officers in the center lane stopping cars. As far as I could tell they were stopping every vehicle to ask for license, registration, proof of insurance and check for intoxication. I was told by the officer that it was an "advertised roadblock" and that they were doing a "safety check". I suspect that this roadblock is set up mainly during holiday weekends.