A CCTV operator tipped off police after seeing a man staggering before getting into a car.
Richard Neve was found to have three times the legal amount of alcohol on his breath.
Neve (35), of Bridge Road, Sutton Bridge, admitted drink-driving in London Road, King’s Lynn, on July 7.
Susanna Chowdhury, prosecuting at King’s Lynn Magistrates’ Court, said Neve was seen by a CCTV operator at 10pm, staggering and getting into a car.
The registration number was passed to the police.
When stopped, he gave a positive roadside breath test and was later found to have 108 micrograms of alcohol in 100 millilitres of breath. The legal limit is 35.
Giles Debenham, for Neve, said his client had a full clean licence and had complied with the police.
He said: “He would be the first to acknowledge he has no real excuse.”
At the time of the offence, Neve was in an emotionally fragile state due to worrying about losing his home.
Mr Debenham added: “He had a few drinks and unwisely drove.”
Neve had mental health problems and had been diagnosed as suffering from anxiety, for which he was taking medication.
He was sentenced to a one-year conditional discharge and a year’s probation supervision.
He was also ordered to participate in a drink-impaired driver’s programme for 60 days and banned from driving for 18 months. Costs of £25 were imposed.