Murrumu Walubara Yidindji was arrested in the dock at Cairns Magistrate Court on Tuesday after repeating his stance that he is "Murrumu in the appropriate persona" for two consecutive days.
Despite the commotion, he was released by Magistrate Robert Spencer, who decided to treat the 41-year-old effectively as if he was not Mr Geia.
"I will be writing to the magistrate to say thanks," Murrumu told AAP. "It's a really hard job [being a magistrate], same with the guys in the watch house."
Murrumu, who renounced his Australian citizenship last year, doesn't acknowledge the right of Australian courts to prosecute him because his people, whose territory includes Cairns, were not consulted at the founding of the constitution.
He was arrested on a warrant on Sunday to face charges relating to his alleged use of number plates and driver's licences issued by the unrecognised Yidindji government.
He said the government had one car with Yidindji plates, which have since been confiscated.
Other plates had been printed up for some of the 30 people whohad made a pledge to the nation.
"We're not handing out licences and plates to everyone," he said.
"There are stringent tests for licences and when the time is right those people will have the permission and licence to travel."
Magistrate Spencer said a notice to appear would be sent to Mr Geia and the matter would be heard without him if he did not appear.
Murrumu says he's hopeful his case will strengthen the relationship between his government and Australian courts.
"I'm not too sure where it's going to go," he said. "But I think it's a step in the right direction to really
ironing out some of the issues that need to be resolved."
Murrumu also spent three days in custody earlier after he allegedly set up a Yidindji embassy in Canberra public housing.