A blue plaque has appeared close to the spot where Prime Minister Rishi Sunak was caught filming in the back of a car without a seatbelt on Squires Gate Lane in Blackpool.
Mr Sunak was announcing his Government's levelling-up funding in January and was filming a social media video.
Lancashire Police said it had issued a 42-year-old man from London with a conditional offer of a fixed penalty.
No 10 said Mr Sunak "fully accepts this was a mistake and has apologised", adding that he would pay the fine.