(a) Each registered agent designated by a transient merchant in the application for a license shall be a resident of the county and shall be agent of the transient merchant upon whom any process, notice or demand required or permitted by law to be served upon the transient merchant may be served. The registered agent shall agree in writing to act as such agent and a copy of the agreement to so act shall be filed by the applicant with the application for a license.

(b) The county clerk of each county shall maintain an alphabetical list of all transient merchants in the county and the names and addresses of their registered agents.

(c) If any transient merchant doing business or having done business in any county within this state fails to have or maintain a registered agent in the county or if such registered agent cannot be found at such registered agent’s permanent address, the county clerk shall be an agent of such transient merchant for service of all process, notices or demands. Service on the county clerk shall be made by delivering to and leaving with the clerk or any person designated by the clerk to receive such service, duplicate copies of the process, notice or demand. When any such process, notice or demand is served on the clerk, the clerk shall immediately cause one copy thereof to be forwarded by registered or certified mail to the permanent address of the transient merchant.

(d) The provisions of this section shall not limit or otherwise affect the right of any person to serve any process, notice or demand in any other manner now or hereafter authorized by law.