The force released the footage during charity Brake’s Road Safety Week, external.
A spokesperson said it was “to warn motorists dangerous driving will not be tolerated – and how it could easily have far more tragic consequences”.
Roser, from Trewoon, St Austell, also pleaded guilty to failing to provide a specimen when he appeared in court on 9 November.
He was jailed for 12 months for dangerous driving and jailed for one month for breaching a suspended sentence order; and was banned from driving for three years.
The video shows him repeatedly driving on the wrong side of the road into the path of incoming vehicles and, at one point, mounting a grass verge on the other side of the road.
He apologised to officers under police interview and told them: “I think the manner of my driving is appalling,” adding that there was “no excuse”.