Q: Can I sell at my products at a local store hosting a local vendor fair?

 A: No. This would not be considered a community event since it is at a private retail shop. Cottage food producers cannot sell in a retail store, even if you are present for the sale or vendor fair. Farmers' markets and craft fairs are considered community events. 

No pop-up shop in the store parking lots either. You would have need a food license to sell product at retail store.