I understand the general principle of how this works, but how are things like press cards dealt with? It seems like that's a major signal that you aren't part of the in-group.
This starts going down the rabbit hole, but you can misrepresent yourself as shooting for <small newspaper / blog / group> and say there were communication problems.
Other times there are multiple entrances and if security doesn't communicate with each other you can try again.
It all depends on how willing you are to push the boundaries.
