Police prosecution told the court that after Murray was stopped by police on Whakatu Drive, the highway between Nelson and Richmond which has a 100km/h speed limit, an evidential breath test showed him with 999 micrograms of alcohol per litre of breath – the legal limit for a driver over 20 years old is 250 micrograms per litre of breath.
Judge Rielly said it was unclear why Murray had behaved as he did, after so long since his last offence.
"I don't know why on earth you did this, but I hope, as your lawyer has said, that you regret your actions and that it won't happen again.
"It's so important you know the risk you posed to other members of the community," Judge Rielly said.
On the charge of drink driving, Murray was sentenced to 200 hours' community work, and 100 hours on the charge of dangerous driving.
He was now also subject to an alcohol interlock order, which carried an automatic 28-day disqualification before the device was fitted to his car for a year. He would then spend three years on a zero-alcohol licence.