The Medical Center has 20 tenants. Among the tenants is Family Planning Partners, which performs abortions, sterilizations, birth control, pregnancy testing, and sonograms. The Medical Center has two parking lots with 60 parking places. The parking lots are used by the Medical Center tenants, patients, and other users of the building. The parking lot is not open to the public. There are no public sidewalks or parks adjacent to the Medical Center. Frank Hill belongs to an anti-abortion group. Frank Hill and his group began anti-abortion picketing in one of the Medical Center's parking lots. The Medical Center has sued Frank Hill and his group, seeking an injunction prohibiting the picketing. Frank Hill and his group are asserting the First Amendment and freedom of expression rights under the Constitution of California. Who wins and why?