A California Department of Motor Vehicles employee slept three hours a day on the job for nearly four years-- all while her supervisors knew, according to a state auditor’s report released Tuesday. And the employee still works there. Between February 2014 and December 2017, the employee snoozed through an estimated 2,200 hours’ worth of work, costing California taxpayers more than $40,000, the audit said. The worker, who was not named in the report, is a data operator responsible for updating information on address changes and new vehicle ownership forms.