A man dressed only in his birthday suit gave the police a bum steer on Friday morning after he parked his car across two lanes of traffic and refused to move.
The police were called to Rye Lane in Peckham just before 10am to reports of a vehicle blocking the carriageway.
When they arrived, the naked man had locked himself in and they were unable to gain access to the vehicle.
In video footage taken by an onlooker, officers can be seen surrounding the car with one officer laid on top of the car trying to open the sunroof, which is how the keys to the car were eventually obtained.
Both police and the London Ambulance Service attended and the man was subsequently detained under the Mental Health Act and taken to a south London hospital.
No arrests were made.