Business Auto Policy and Property Damage Claim

Our insured owns a pizza store and the operations include a delivery service. The insured has a business auto policy with symbols 7, 8, and 9 for liability coverage. An employee was making a delivery with a vehicle he owns and accidentally hit a parked car. The employee did have a personal auto policy but due to his own personal circumstances, the vehicle he was driving was not covered at the time of this accident. His auto insurer denied the claim and we are wondering if our insured's BAP will provide the coverage?

Washington Subscriber