I purchased some frozen fruit bars that rang up incorrectly from the sale sign which was up. I went to the main counter to get my difference back, which was an irrelevant amount but for some reason I suppose I figured there was a principle in there somewhere. After several minutes of effort by a few salespeople, which I was starting to get fed up with (all this sweat work over a measly dollar's difference), it was determined that the sale was over but the tag was still up so that indeed was the price. The surprising part which I didn't expect was that they refunded the whole price of the item. Evidently the policy is if it rings up wrong you get it free. It's certainly customer friendly; not sure about business-wise.