I hate to stick up for him ....but
Most likely he didn't put that ad on there.
It's more likely some service Like Google ad's that caused it
he most likely bought ad regional ad space with a service like google ad's and Gunbroker
just happens to be one who rent page ad space to them for a monthly or per regional hit fee.
Oh that left a bad taste in my mouth....
i'm in this industry specifically and his ad agency is probably dividing up their budget to go to places like facebook, google, yahoo. Then, they display their ads on content relevant partner sites. They probably just bough 1,000,000 impressions and said, we don't care who sees them, as long as they're in the omaha metro.