This is a long-standing complaint with Tractor Supply, both at store level and at corporate. I know literally dozens of people who have written them complaining about their deceptive marketing, selling EEs as Ameraucanas. Someone launched a writing campaign on another site a few years ago, sending links to our site and other documentation. They either received no response at all, or a patronizing "thank you for you interest, yes we sell purebred Ameraucanas." An agricultural background isn't a requirement - although they ask about it on their application, they'll take retail experience over ag experience every time - and most have no knowledge of chickens at all, or know just enough to be dangerous, like the woman you encountered. That said, all the feed stores in the area sell their chicks as Ameraucanas, Araucanas, Americanas, etc. - none use the term "Easter Eggers." About all you can do is post an ad on their classified board (which is normally near the bathrooms @TSC) advertising your birds and explaining the difference, and hope customers read it before buying their mutts.