Balen Hannifey, 21, was spotted driving a white Holden Commodore along Macquarie Street around midnight when he was stopped by police for a random breath test on May 6 this year.

Hannifey, the son of Dubbo truck driver and road safety champion Rod Hannifey, returned a positive alcohol reading of 0.085.

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According to police he told officers he had consumed three schooners of Carlton Dry beer between 8.30pm and midnight.

In Dubbo Local Court on Wednesday, Hannifey pleaded guilty to mid-range drink-driving.

In court defence lawyer David Hemsworth said while Hannifey's record was "certainly not the tidiest" for a young man, the circumstances surrounding his driving weren't alarming.

"His driving didn't attract attention," he said.

"The accused was followed from McDonalds, right to his front door."

The court heard via an agreed statement of police facts tendered in court, Hannifey had previously been charged with driving with an illicit drug present in 2018.

The charge was dealt with by a section 10, where a court found him guilty, but the matter was discharged without conviction.

After completing the traffic offenders program, Hannifey said he felt "incredibly selfish and ashamed" that he "so thoughtlessly" put himself and other road users in danger.

"I've never really thought too in depth about road accidents and the consequences on their families and friends, they had always just been a statistic to me in honesty," court documents said.

Taking into his early plea of guilt and low mid-range reading, along with character references from his work, Magistrate Theresa Hamilton convicted and fined Hannifey $350.

He was also disqualified from driving for three months, and ordered to install an interlock device for 12-months.