Hawkers, peddlers, itinerant merchants, and transient vendors. A county board may regulate, in the manner authorized by this Section hawkers, peddlers, itinerant merchants and transient vendors of merchandise in any area not within the corporate limits of a municipality which licenses or regulates hawkers, peddlers, itinerant merchants, and transient vendors of merchandise. The county board may require that any such person register his name and the name of any firm he represents with the county clerk and may make reasonable restrictions of the hours during which he may engage in door – to – door solicitation. The board shall not require a fee from such persons or make regulations other than those authorized by this Section. The provisions of this Section do not apply to any county which is a home rule unit.