Carl Maxwell Koina, 56, was caught drink-driving on the Bruce Highway at Maryborough, the day after he attended a 50th birthday party.
Police intercepted Koina at 11.55am on February 21.
He returned a blood alcohol content reading of 0.054.
Koina told police that he had attended a party the previous night at the Sunshine Coast and was driving home to Yeppoon when he was intercepted.
The court heard Koina had no previous similar history in the past five years.
Magistrate Jason Schubert fined Koina $350 and disqualified him from driving for one month.
A restricted work licence was granted for Koina's employment as a builder.