Magasiva pleaded guilty in December last yearto driving with excess breath of 569mcg.
On the evening in question, he had hosted a children's Halloween party with his fiancee and drank four glasses of wine, the court was told.
The pair argued and he left on his motorcycle to go to his brother's house but decided to return.
"I accept that you made a poor decision," Judge Maude said.
The proposed fine of $1000 submitted by Magasiva's defence lawyer was inadequate considering the previous offending, Judge Maude said.
The judge said Magasiva was "fronting up" and acknowledged the 12-year gap in offending.
Defence counsel Joey James said Magasiva had made an "unwise" decision but only travelled a short distance away, no more than three kilometres.
When he returned, he noticed a police car outside the address and went back inside the house to check everyone was okay, James said.
Magasiva had cooperated with police at the time and had letters of support from numerous charities, he said.
"Mr Magasiva plays a very significant role in the community" and was considered a "role model".
He had been "subject to a greater level of public scrutiny than the average person".
His fiancee described him as a "kind and loving man - very emotional and honest".
Magasiva did not have issues with addiction, he said.
Speaking after the decision at the North Shore District Court Magasiva said he was committed to being an advocate on the issue of drink driving in the future and was focused on turning this experience into a positive.
"I made a real crucial error, it was a mistake," he said.
"I can't really take it back."
The judge made a point of not issuing a fine because of what it would teach others, he said.
Magasiva said he would use himself as an example to create a "positive outcome".
The 37-year-old issued a statement to the Herald after his first court appearance last November.
"Firstly I would like to acknowledge the mistake and error in judgment in making the decision to drive under the influence," he said.
"I am so fortunate that no one was injured as a result."
Magasiva said there were "no excuses" for his behaviour.
"I fully own up to my mistake and accept the consequences of my actions.
"I am sincerely sorry for putting my family, especially my daughter and my employers and sponsors in this position.
"I know I have let them down. I am sincerely grateful for their support and thankful they have accepted my apologies."
