A delivery driver was caught more than twice the limit when his van was seen swaying all over the road just before midnight, a court heard.
Burnley magistrates were told Asif Ali (56) was in front of police in the vehicle when he crossed the central line in the road and drove on the wrong side of the carriageway.
He stopped outside a Nelson school and officers smelled alcohol on his breath when they went to speak to him. He then failed a roadside breath test.
At the police station he blew 74 microgrammes of alcohol in 100 millilitres of breath. The legal limit is 35.
Ali was a delivery driver at the time and has now paid the price with the loss of his job and his licence.
The defendant, of Wood Street, Brierfield, admitted driving with excess alcohol on Hibson Road, Nelson, on Tuesday, February 28th.
He was fined £120, with £85 costs and a £30 victim surcharge and was banned for 20 months. Ali had no previous convictions.
Mr Glen Smith, defending, said Ali had been invited to a friends' house at very short notice.
He added: "He very, very rarely drinks, his friends offered it to him and he had been tempted.
"It was whisky and he misjudged the volume. " Mr Smith added :" He worked as a self-employed delivery driver for TNT and he has lost that work. "