Police arrested a drink-driver after receiving a tip off from a member of the public who saw him drinking inside his Audi A8 early one morning.
Nick Todd, prosecuting, said the person who called at 7am on August 11 suspected that Deividas Druciunas was drink-driving.
Police found his car on Sheep Market and followed it onto Station Approach.
Mr Todd said Druciunas gave a positive roadside breath test. He was then taken to the police station, where he was found to have 67 microgrammes in breath – almost double the legal limit of 35mcgs.
Druciunas (28), of Castle Close, Spalding, was banned from driving for 18 months, fined £350 and ordered to pay £85 costs with a £35 victim surcharge. He admitted driving with excess alcohol.
Druciunas, who was not represented by a solicitor, told Boston magistrates he had nothing to say about the offence.