Hill was cheered into Singleton Court by a crowd of 80 protesters, some of whom held signs criticising "tyranny" and "discrimination".
Emerging after a five-minute hearing, Hill told his supporters the matter was "done".
"I tried to read my statement and he would not listen," he said.
"They won't want to hear it, that's why — because it's illegal what they're doing."
Despite Hill's conviction minutes earlier, protesters shouted "justice" before asking to drink at the pub.
'Who are you?'
Inside court, Hill, who was not wearing a mask, approached a microphone before immediately taking issue with his identification.
Magistrate Mark Richardson asked if he was Bradley John Hill, to which he replied, "Mr Hill is not in the court, I am Bradley John".
"Who are you? Why are you standing in the court?" Magistrate Richardson said.
"You have no entitlement to be standing there."
With the accused and Magistrate at loggerheads, Hill's name was called three times by the court sheriff before an application was granted to have the matter dealt with as if Hill were absent.
He was convicted and fined $3,000.
'Severe anxiety'
Police facts tendered in court detailed repeated breaches of COVID-19 public health orders at the Caledonian Hotel.
Police attended the venue multiple times and warned Hill about being in the hotel while unvaccinated and for failing to check the vaccination status of patrons.
On October 15, Hill was "was seated in the public bar on a bar stool and was consuming a schooner of beer with another person", the document stated.
When police asked if he had updated his vaccination status, he said he had spoken to a doctor who had provided a letter.
"The letter states there is no absolute medical contraindication to COVID immunisation, but the accused does have firmly held beliefs and severe anxiety about getting vaccinated," the police facts said.
Police believed the letter did not meet the requirement under the Public Health Act and later that evening witnessed staff failing to verify the vaccination status of patrons.
'So unfair'
A protester outside Singleton Court named Fiona said she was a preschool educator and had been unable to work due to vaccination requirements.
"I'm here because this is so unfair, what's happening," she said.
Another protester named Tony Sosich said he was at the courthouse to "keep Australia free".
Clay Hill, who claimed to have organised of the protest, said Bradley John Hill had been "victimised" by NSW Police.
He said he organised the demonstration via social media and that attendees had travelled from Port Macquarie and Taree.
