The grantee shall pay all reasonable expenses incurred by the city in defending itself with regard to all damages, penalties or other claims resulting from the acts of the grantee, its assigns, employees, agents or invitees in connection with the operation of the cable system. Clerical expenses shall include all out-of-pocket expenses, such as attorneys’ fees and court costs. Certificates of insurance or actual insurance policies required by this section shall be furnished to the city prior to the commencement of any work to be performed by the grantee in accordance with this franchise and continuing certificates of insurance or actual insurance policies shall, at all times, be furnished to the city providing proof of insurance coverage as required herein during the course of this franchise.