Pen. Code, § 420.1

Anyone who willfully and knowingly prevents, hinders, or obstructs any person from entering, passing over, or leaving land in which that person enjoys, either personally or as an agent, guest, licensee, successor-in-interest, or contractor, a right to enter, use, cross, or inspect the property pursuant to an easement, covenant, license, profit, or other interest in the land, is guilty of an infraction punishable by a fine not to exceed five hundred dollars ($500), provided that the interest to be exercised has been duly recorded with the county recorder’s office. This section shall not apply to the following persons: (1) any person engaged in lawful labor union activities that are permitted to be carried out by state or federal law; or (2) any person who is engaging in activities protected by the California Constitution or the United States Constitution.