Not for your personal filing. Coverage on an employer vehicle protects the employer interest in that vehicle. A personal proof requirement attaches to you and has to be satisfied by a policy in your name, typically a non-owner form.
More detail
This comes up constantly in the outstate hub towns, where a driver may spend the entire workday in a company truck and own nothing personally. The confusion is understandable: they are insured all day. But the state flagged the person, and the certificate has to speak to that person. A non-owner policy is usually the right form, and it is inexpensive precisely because it carries no vehicle. One more practical point: an employer running commercial auto coverage typically checks driving records, so a driver in this situation should assume the employer will learn about the violation through their own process and would generally rather hear it first from the employee.