Yeah seemed odd to me as well, but I went and checked their site and it's advertised on there as well. Interesting.
http://www.carlblackchevy.com/
On a related note, I'm surprised at how terrible the dealer ratings for Chevy dealers are around here. Scary. The infamous Bill Heard Chevy was in the area as well. After a local news team did an undercover story on their poor business practices and several people setting up lawn chairs on the sidewalk in front of their dealership with signs saying "I was ripped off" they went out of business. One guy even had "Bill Heard Chevrolet screwed me, ask me how" decals on his car. I actually saw the guy driving around.