The Department of Administrative Services, for and in behalf of all departments, boards, bureaus, agencies, and instrumentalities of the state, shall secure a blanket or group liability insurance policy which shall provide to state employees, up to the limit specified in the policy, protection from liability for damages arising out of the operation of any state owned motor vehicle, or any motor vehicle owned by any agency or instrumentality of the state, by any state employee during the course of his employment. Such policy shall in no manner provide for protection from liability to the state or any of its agencies or instrumentalities, and nothing contained in this article shall be construed in any manner whatsoever to waive the sovereign immunity of the state or any of its agencies or instrumentalities.