While seeming forthright, this paragraph is not well-known among Post Office personnel and is sometimes seemingly misconstrued by those who are aware of it. Some read that the section stating "except where prohibited..." applies to all locations, whereas others believe it only applies to "auditoriums when used for public meetings".
In claiming the latter of these two arguments, proponents of the stance that the phrase can only apply to auditoriums, citing Richmond Newspapers, Inc. v. Virginia (1990) where the U.S. Supreme Court seemed to indicate that members of the press have equal access as the general public. In other words, if the general public is allowed access, members of the press should also be allowed access. While the case mentioned was regarding access to a public court trial, an argument can be made that this extends to all public facilities.
Those in opposition to Auditors' appearance in or at a Post Office will also challenge the Auditors' qualifications as journalists or members of the press. Often, they will request to see a "Press Pass" or "Press Credentials." While there are some credentials issued by certain organizations or for access to certain events for security purposes, no such "credentials" are government-issued for practicing journalism in general public situations or locations. Instead, as characterized by scholars Patrick J. Charles and Kevin O'Neill, "[T]he role of the press is to keep the public informed." This can generally be extrapolated to state that anyone who gathers information for dissemination to the public is a journalist and can be considered, even on their own, a member of the press.
Considered by Auditors to be the most ridiculous of arguments by opponents is the differentiation between photographing and taking video. Taking video is, in essence, photographing at a very high rate of speed. A video in today's world is simply a conglomeration of photographs taken at a rate of 60 per second, also known as FPS or Frames Per Second. With the right software or equipment, any one of these frames can be singled out and made into its own separate photograph.
Combining all of these points, anyone who situates themselves at or in a Post Office for the purpose of gathering information for dissemination to the public, even if that is taking video of employees' reactions to someone doing this, would be considered photographing for news purposes. So long as they do so from publicly-accessible and unrestricted locations they would be completely legal to do so. As a matter of fact, as argued by the Auditors, it is their right as confirmed by the First Amendment and Supreme Court precedent.
Finally, when disagreeing with the Auditors' presence, members of the public and postal employees generally call local law enforcement - either police, sheriff, or state police - in an attempt to have the Auditors removed. In almost all cases, local law enforcement has no jurisdiction at the Post Office. Even Federal Protective Service (FPS) does not have jurisdiction according to the final paragraph of Poster 7, in the lower right-hand corner, and 18 USC 3061 (c)(2).