James Alexander was so drunk he could not focus on the road, speak or walk properly when he was pulled out of the car by police.
He was spotted by another motorist on the A92 in north-east Fife weaving his Volvo SUV across the road - and indicating left while swerving to the right.
The other driver eventually pulled over behind Alexander near his home in Luthrie, near Cupar, and took the keys out of the ignition to prevent him driving off again.
Dundee Sheriff Court yesterday heard Alexander had previously been convicted of driving while three-and-a-half times the drink-drive limit - and that his ban for that offence had only run out a week before he was caught again.
Fiscal depute Susan Ruta said: "It was noted that the accused could hardly focus or speak. He was saying he just wanted to get home to his family.
"Police arrived and took him out of his vehicle and he was unsteady on his feet."
Alexander, 49, of Luthrie, near Cupar, pleaded guilty to driving with 139 microgrammes of alcohol in 100 millilitres of breath on May 18 this year. The limit is 35.
Sheriff Elizabeth Munro deferred sentence until later this month but said Alexander would not face jail.