Hillbilly Hustle mentions several Kentucky businesses you can visit.
A few others were in scenes cut during revision.
Here are a few of Wesley's favorites.

Apollo Pizza - Richmond, Kentucky
(the real life site of fictional Porthos Pizza)
Frosty-Ette - Sand Gap, Kentucky
Purdy's Coffee - Richmond, Kentucky
Big Fish Tattoo - Richmond, Kentucky
Country Boy Brewing - Lexington & Georgetown, Kentucky
Rio Grande (Mexican Hardees) - Berea, Kentucky
Gillum's Sports Lounge - Richmond, Kentucky
Babylon Gyros - Richmond, Kentucky
Papaleno's Pizza - Berea, Kentucky
Paddy Wagon Irish Pub - Richmond, Kentucky
West Sixth Brewing - Lexington & Frankfort, Kentucky
Morgan's Discount - Berea, Kentucky
Wick's Pizza - Louisville, Kentucky