Pretty sure it's not an official plate. The sovereign citizens will print their own. Sometimes like this in an effort to fool cops into thinking its a regular plate so they don't get pulled over.
In America I have the right to travel FOR FREE! recites garbage thinking they’re a lawyer.
Yeah, the right to travel. No restrictions against travel. You are very welcome to walk on over to another state for free. You can ask your friend for a ride and go over there. It’s just if you want to drive your own personal car on public roads, you have to pay to register it. Oh, did you not think that they obviously included that in the lawbooks? I’m sorry to burst your bubble but actual lawyers covered their asses, Jimmy Youtuber didn’t find out one sick way around it.