What is so amusing about this incident is that the Head of DHS, Janet Napolitano, was recently bragging that DHS would start "going after" management personnel who knowingly employs illegal aliens. Perhaps this is what motivated Overhill to jettison their illegal workers. Now, at least theoretically, Napolitano can no longer prosecute Overhill management for employing illegals, because there aren't any more.
Whether or not this was Napolitano's original intention, it was absolutely brilliant.