No permit under this chapter shall be required by any person peddling or distributing anything while acting under and carrying a then valid certificate issued within ninety days by a nonprofit fund, foundation or corporation which has established its tax exempt status under Section 501 (c)(3) of the Internal Revenue Code and which is organized and operating primarily for youth improvement, or for any religious or charitable purpose, or for the purpose of providing any service or activity conducted or supported by any community chest or like community aid fund, or for any hospital service, which certificate states that such peddler is a person of good moral character and is acting as a distributor or peddler for, or under the sponsorship, authority or direction of, the issuer of such certificate, provided that such certificate is exhibited upon request to any police officer or other person upon request therefor. Nor shall any permit under this chapter be required by any person while acting under a valid license issued to him by any agency of the State of California authorizing him to peddle or distribute anything as an incident to an occupation regulated by State law, provided that such license is exhibited upon request to any police officer or person upon request therefor. Nor shall any permit under this chapter be required by any person while responding to an invitation or appointment or by any person at any place on a route or in a territory assigned exclusively to him pursuant to any employment or contract for the regular daily, or other periodic, delivery or sale of milk, bread, water, cosmetics, brushes, toilet articles, newspapers or similar articles, or by any person at any place in any area where such person regularly and periodically performs residential maintenance or cleaning services, including gardening, spraying, window cleaning, floor waxing and similar services, provided that any such person referred to in this sentence shall have been so engaged in such activity in such area for a period of at least thirty days prior to any peddling therein by such person and he is not wanted, and has not been held, by the police for investigation of, and has not been convicted of, or arrested for, any crime referred to in Section 3.32.010 of this chapter. (Ord. 1843 § 2 (part), 1972).