Louis Canelakes, owner / operator of Louie's in Texas said the joint was slammin', and his phone hasn't stopped ringing since his segment on Diners, Drive-Ins and Dives aired. He even heard from an old buddy of his from Waukegan that he hasn't talked to in years.
But my favorite story about the Diners, Drive-Ins and Dives crew was about what happened one day after they finished shooting at Louie's all morning. Lou and Chris decided to go to Avila's on Maple for lunch, which they do often. They discovered when they arrived that the Diners crew had gone straight from Louie's to Avila's, so it was closed. (Richard Avila is the one who recommended that the crew shoot at Louie's, by the way.)
Lou decided to just walk in the back door and crash the party. Guy Fieri spotted him first and said "What are you doing here?" to which Lou replied "First you ruined my morning, and now you're going to ruin my lunch?" (with a few expletives thrown in). Guy said he'd fix them lunch and proceeded to cook them Avila's brisket gorditas himself, which Lou said were the best he'd ever had there. Guy even waited on them.Lou, who started out calling Fieri "Hairdo," said he's a good guy -- "one of us," meaning a restaurant guy who just happened to go into showbiz.
Diners, Drive-Ins and Dives episode guide