Any person knowing of the revocation of his appointment as a special policeman or having in any manner received notice thereof who exercises or attempts to exercise any of the powers of a special policeman under Code Sections 35-9-2 through 35-9-12 shall be guilty of a misdemeanor. The filing and mailing of the notice of revocation of the appointment as provided in Code Section 35-9-11 shall be presumptive evidence that the person whose appointment was revoked knew of the revocation.