Pauline Briggs was arrested at an Adelaide hotel last week after fleeing her hometown of Mildura, which is currently one of the few regional Victorian areas in lockdown.
She had been staying at the Pullman Hotel with friends Colby Higgins and Tammy Bustard who were also arrested for breaching border restriction protocols.
Ms Briggs wept in the courtroom as the judge revealed that she would be spending the next month behind bars.
She tearfully told the court that crossing the border was a “mistake” and that it was “stupid”, before pleading guilty to all charges.
Ms Briggs’ co-accused friends did not apply for bail and they will remain in police custody until they face court this week.