(a) At the official time for closing the polls and upon termination of the voting, the poll workers shall announce that the polls have closed and in the presence of all persons authorized to be present shall remove the activation devices from the voting machines to make them inaccessible to further voting.
(b) At the same time, the poll workers shall sign a certificate provided by the county board of election commissioners stating that the machines were made inaccessible to further voting and giving the exact time and the number of votes shown on the public counters.