Tara Rana-Huia Omahu Bryers, 24, pleaded guilty to driving while disqualified when she appeared in the Whanganui District Court.
Police caught Bryers driving with three occupants in the car on December 3 in Whanganui.
Defence lawyer Stephanie Burlace said Bryers accepted she made a poor decision.
"Someone else was driving while they had been drinking and made the decision to pull over, and she drove because she was sober."
Judge Stephanie Edwards convicted Bryers, ordered her to pay a $400 fine and $130 court costs and disqualified her from driving for a further six months.