I had an incident at Petsmart over the Christmas holidays - bought 2 kinds of treats for Myndi - same company (distributor), but one was made in the U.S. and the other in China. As soon as I got them home I noticed the difference, so the next day I took the China made back to the store. They gave me no issue about returning it, and when the clerk asked why I was returning and I told her, she looked at me like I had 2 heads - or worse.
Don't these places care what they sell? It's a shame that it all has to be on the consumer to check and double check, and the stores don't care what they sell (as long as it isn't a recalled product), and as long as it brings in a profit.