Police officers noticed Mollie Wright, 24, driving over the speed limit on January 28 in Southmead, Bristol.
The transport planner, from Filton Grove in Horfield, appeared at Bristol Magistrates' Court on Tuesday and admitted drink driving.
Prosecutor Paul Kelly said: 'At 12.10am, police officers were on patrol in Pen Park Road. Travelling in the opposite direction was a Skoda Fabia which appeared to be going in excess of the speed limit.
Police officers noticed Mollie Wright (pictured above, leaving Bristol Magistrates' Court), 24, driving over the speed limit on January 28 in Southmead
'This brought the attention of the officers, who turned around and watched the vehicle go into Monks Park Avenue.