Remember, when the store opened its doors and put all the stuff on the shelves, and failed to set up a check out verification process (like Costco), they took the risk that their customers could and would make mistakes.
Now they know that the chilluns get seized by the state ~ that's one of the first steps!
Do you imagine that was a thrilling experience for the manager? I do.
We have begun to live in an age when someone (pregnant, or otherwise—or assuming facts most favorable—accompanied by a stupid spouse) does something stupid, and expects to be “forgiven” because they blog about it. Your initial response simply encourages more of this kind of behavior.