Barnes, from Baydon near Swindon, was also driving erratically when she hit and killed teacher Diane Wright in September 2010. Her car was crushed and she died at the scene.
Barnes is at Swindon Crown Court for her sentencing, having eventually pleaded guilty to dangerous driving after going on the run in Holland for 18 months.
More top news
We've been getting acquainted with the Shaun the Sheep sculptures heading out on location for this summer's trail across Bristol
The Shaun in the City sculpture trail, which hits Bristol's streets on Monday, was given its official, and typically unusual, launch today.
Not enough beds and an agonising wait for the right help - a mother describes the anguish of trying to save her anorexic daughter.