Where Am I Anyway?

I have mentioned many times, both in real life and my various posts, that the mail delivery to the store has been a little random.  Sometimes, we get the mail for places that closed and moved out of the center years ago.  At other times, we get regular mail late or perhaps not at all.  Today, we got a regular monthly catalog by some rather unusual means.  It had been delivered to a branch library at the other end of the county.  Fortunately, one of the staff was working in the main branch today and brought  the catalog along or else we would have had to ask the company for a second issue.  This catalog is usually in a slick plastic bag that could theoretically have clung to the copy that the branch library might have received, as opposed to it just simply being sent to the wrong address.  Even then, how could it have been send to the other end of the county!  Shouldn't someone have looked more closely at the ZIP code, or at least realized that something was wrong?  What worries me the most is that this could have happened way more often, since we have had a lot of missing catalogs and such.