Sebastian John Ensor, of Fitzroy Street Dubbo, was discovered by police slumped over the steering wheel of his Toyota Hilux with blood running from his nose on June 27.

The 25-year-old initially told police he had consumed two standard drinks, six hours prior to the crash, which occurred about 4.30am on Victoria Street, near the LH Ford Bridge.

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However police facts state Ensor had slurred speech and smelt of alcohol as he climbed out of the vehicle to vomit on the street.

Tests revealed he had consumed more than three times the legal limit of alcohol, driving with a reading of 0.172.

Ensor's defence told the court his client was taken to the intensive care unit at Dubbo Hospital for treatment and a urine test revealed there were traces of benzodiazepine in his body.

The defence said Ensor had "no recollection of taking anything" and claimed that it could have been put in his drink.

Court documents stated Ensor went to the Dubbo Police Station after leaving hospital later that morning and told police he had "blacked out" after 2am the morning of the crash after consuming four beers.

At Dubbo Local Court on Wednesday Ensor pleaded guilty to one count of high-range drink driving.

Ensor's defence attempted to gain an exemption from the alcohol interlock program due to his rare medical condition Pott's Puffy Tumour, which affects the sinuses.

However Magistrate Gary Wilson questioned how the condition, which he was diagnosed with as a teenager, related to the request or Ensor's driving ability.

Magistrate Wilson offered an adjournment for a medical report could be obtained, however Ensor declined the request in court because he wanted the matter to be "over and done with".

Magistrate Wilson said he was lucky to have escaped serious injury.

"You're a highly regarded and well spoken of man," Magistrate Wilson said.

Ensor was convicted and fined $500, and disqualified from driving for six months. He was also placed on the interlock program for two years.

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