So far I have only OC's once in my local food lion here in northeast charlotte by the speedway. I went in and I tell ya the good looking girl at the counter seemed friendlier than usual =)
Hmmm, I don't shop at Food Lion but drive by that one regularly going to the post office right behind it and may have to stop in to verify the "good looking"-ness of said girl haha!
As for contacting corporate/upper management, keep in mind that it may reflect poorly upon the store manager if the overall tone of your contact is a "complaint." There's nothing wrong with contacting them but I would make clear that the point of my contact is to report my positive interaction with the store manager and how he defused the situation so well. Having worked in big-box retail I've seen how DM's, Regional coordinators, and Regional exec's can interpret ANY contact from a customer as a failure of the store manager to handle a situation. Just my $.02