If you do the same in a public space, a cop will stop you immediately without waiting for a court order. Or even a security guard. Judges are definitely not the starting point of all security actions.
Cops aren't allowed to stop you from saying neo-Nazi things on a government-owned public space unless you live in a country where free speech doesn't exist.
So you claim, random Internet user. The rest of the world sees things differently. Even in the USA, plenty of things are explicitly illegal to say out loud in public, such as calling out "fire" or anything pornographic. You also still have a political prison in Guantanamo where people are detained indefinitely without trial, but sure, tell us what freedom means.