Specifies that a person who owns or operates a private camping facility funded under the bill's provisions is immune from civil liability. Prohibits an individual from camping, sleeping, or using for long term shelter land owned by the state or a political subdivision, unless the land has been authorized for that use under law. Provides, if certain elements are met, that a person who knowingly or intentionally uses land owned by the state or a political subdivision for unauthorized camping, sleeping, or long term shelter commits a Class C misdemeanor. Establishes an affirmative defense to such a prosecution. Prohibits a political subdivision from adopting or enforcing any policy that prohibits or discourages the enforcement of any order or ordinance prohibiting public camping, sleeping, or other obstruction of a sidewalk. Authorizes a resident of the political subdivision, an owner of a business located in the political subdivision, or the attorney general to bring a civil action to enjoin a political subdivision that adopts or enforces such a policy. Makes conforming changes.