Penal Code § 303a
CHAPTER 7. Of Crimes Against Religion and Conscience, and Other Offenses Against Good Morals
It shall be unlawful, in any place of business where alcoholic beverages are sold to be consumed upon the premises, for any person to loiter in or about said premises for the purpose of begging or soliciting any patron or customer of, or visitor in, such premises to purchase any alcoholic beverage for the one begging or soliciting. Violation of this section shall be a misdemeanor.