I think the way the Walmart system work, he maybe able to get away with it. Just like last year, someone bought something from Bestbuy and when he/she went home and open the box, a suppose to be a Video camera become a jar of spaghetti sauce or something like that.
People know how the system work and take advantage of it. At the end, regular shoppers pay for the cost. It is sad ... but nothing we can do as a consumer. I remember the person said on the TV that he/she (I forgot) afraid of returning the whole thing back to Bestbuy store because they may think he/she switch the video camera.
The op website domain whois information shows the address of Poughkeepsie, NY 12601. So people may need to becareful when buying D40 from Walmart around that area.