In the absence of the County Executive, the charge of the day to day operations of the County under section 5.04 of this code when a disaster or emergency exists shall succeed as follows: Chairman of the Kenosha County Board of Supervisors, Vice-Chairman of the Kenosha County Board of Supervisors, and Kenosha County Sheriff. However, none of the successors herein specified shall have the right to exercise any Executive powers which would otherwise succeed, as a matter of law, to the County Board of Supervisors or a committee thereof.