When an employee with regular or probationary status is called for jury duty, or subpoenaed as a witness by proper authority for cases in which the employee is not a party, the employee shall be granted a leave of absence with pay. All jury duty and witness fees other than mileage reimbursement shall be surrendered to Clackamas County. Employees who are excused from jury service or court appearance before the end of their work day must immediately report their availability for assignment to their supervisor. Employees regularly scheduled to work on shifts other than day shift may be considered to be on day shift for the duration of jury duty.