Cal. Bus. & Prof. Code § 22435.7
(b)
(1) A city, county, or city and county may do either of the following with a shopping cart that has a sign affixed to it in accordance with Section 22435.1 that is located outside the premises or parking area of a retail establishment:
(e) Any shopping cart that is impounded by a city, county, or city and county pursuant to subdivisions (b) and (c) shall be held at a location that is both:
(f)
(i) Notwithstanding subparagraph (B) of paragraph (1) of subdivision (b), a city, county, or city and county may impound a shopping cart that otherwise meets the criteria set forth in that subparagraph without complying with the three-day advance notice requirement provided that: