A person who receives emergency medical treatment from an ambulance or first responder service or transportation by an ambulance service shall be liable in contract to the person providing such services for the reasonable and necessary cost of the services, whether or not he or she has agreed or consented to such liability. (Added 1969, No. 112, § 1, eff. April 22, 1969; amended 1983, No. 226 (Adj. Sess.), § 11.)