I would suggest that all offices talk with their insurance agents to get coverage to employee travel on the job. Even if your employee is going to the bank or post office and has an accident, their auto insurance company can hold you liable for the claim if they were on the job at the time of the accident is my understanding. We don't have multiple offices, but have had employees marketing our Diabetes Education program and logging many miles so we added coverage for this while also covering our office employee who make errands during the day.