Those images are supplied; either from RIM or from the company that handles their marketing. Most store circulars are produced entirely by 3rd parties and there are really only a few that can do things on the scale of Radio Shack. RS provides the details and then the layout is done and approved. The people at RS approving the proof aren't the kind that would catch something that subtle.
I've done images for sale circulars like that. One image of the product itself and the background is changed for the retailer's particular needs. Appears that the person that did the image work for RS decided to have a little fun.
Radio Shack is still a joke, but in this case the error was made by a 3rd party.