No person shall solicit contributions or anything else of value for any real or alleged religious purpose within the municipality without a permit from the city recorder authorizing such solicitation. Provided, however, that this section shall not apply to any religious institution operated exclusively for religious purposes if the solicitations are conducted exclusively among the members thereof, voluntarily and without remuneration for making such solicitations, or if the solicitations are in the form of collections or contributions at the regular assemblies of any such organization.