...op, i can almost guarantee you that the store you went in was already on a list of stores that has been reported or has gotten complaints for suspect s**t in the past. it sounds like she went extra hard like she thought you were a mystery shopper.
i was in downtown sacramento this past weekend, at a starbucks. i don't even do coffee joints, but my girl wanted to grab a noncaffeinated cold chocolate drink, so we hit one up. the store had this little thick sista on the register. the rest of her crew were white girls if i remember correctly. they were all normal, that day, but i just wonder if they are all a little extra chipper after the nation wide training.