(a) Each person in this state shall conduct himself and keep and manage his affairs and property in ways that will reasonably assist and will not unreasonably detract from the ability of the state and the public successfully to manage emergencies. This obligation includes appropriate personal service and use or restriction on the use of property in time of disaster.
(b) This chapter neither increases nor decreases these obligations but recognizes their existence under the constitution and statutes of this state and the common law.