working journalist. Freelances can get them. There's a process.
But if you are a local blogger who happens to come across something you aren't going to have a press card even though I'd argue you are just as legitimate, in some ways more as a local.
Local non-journalist stumbling across a national story and getting big coverage only happens in the movies. In the real world the real journalists find out and arrive within an hour or two.
A press card is supposed to indicate to police that someone is a working journalist. Freelances can get them. There's a process.