Schwartz (32) entered a guilty plea at Christchurch District Court yesterday afternoon.
The promotions manager and reality TV star was charged with driving on Christchurch's Avalon St at 12.39am on October 28 with a breath alcohol reading of 473 micrograms of alcohol per litre of breath. The limit is 250mcgs.
Schwartz, who lives in Christchurch, admitted the police summary of facts before a community magistrate today.
It's understood she was driving home after a MAFS wrap party.
When caught, she told police she was driving home as her friend did not have a licence.
Defence counsel Linda Drummond said Schwartz was "incredibly remorseful" and had acknowledged her error that had been "publicised quite widely".
Drummond said Schwartz described herself as a person who "owns her mistakes".
She has no previous convictions and had been subject of earlier significant media coverage, the lawyer said.
Schwartz was convicted and disqualified from driving for six months, and ordered to pay a fine of $400.
Earlier, Schwartz posted on Instagram: "I disappoint myself."
"I am taking full responsibility for making the wrong decision and I'm annoyed at myself for letting my emotions get in the way of logical thinking.
"I have no interest in hiding it and in true fashion I'm owning it.
"It was a routine stop, it had been three hours since my last drink, I had eaten, and I knew how much I had had to drink. I was upset and thought it was best to leave an awkward situation and go home."
Schwartz had starred in the TV reality show Married At First Sight NZ this season, where she was married to apprentice barber Gareth Noble.
