I'm sorry but I haven't a clue about what you are describing. We don't have Harris Teeter grocery stores here in my neck of the country.
Also, I've never seen a potato salad with a pinkish hue to it.
However, now that your question as appeared in the Family Corner Exchange Newsletter, I'm sure someone will be popping by that can help you!
While I am here, let me just say
Welcome to Family Corner!!
In my opinion, this is the absolute BEST place on the web!!
Hope to see you on some of our other threads and forums too!!