In order to bring the provisions of this article to the attention of any person who may be affected thereby, each member of the police department on the effective date of the ordinance codified in this article, and each person appointed to the position of police officer on or after the effective date of the ordinance codified in this article shall be furnished a copy of the provisions of this article and shall make, under oath, and file in the office of the chief of police the following declaration:

I hereby acknowledge receipt of a copy of the provisions of Chapter 2.56 of the Atherton Municipal Code and hereby declare that during the term of my employment in the Police Department of the Town of Atherton, I shall neither instigate, participate in, nor afford leadership to a strike against said Town nor engage in any picketing activity in furtherance of such strike.