The certificate required by Section 44-17-410 must authorize and require a state or local law enforcement officer, preferably in civilian clothes, to take into custody and transport the person to the hospital designated by the certification. No person may be taken into custody after the expiration of three days from the date of certification. A friend or relative may transport the individual to the mental health facility designated in the application, if the friend or relative has read and signed a statement on the certificate which clearly states that it is the responsibility of a state or local law enforcement officer to provide timely transportation for the patient and that the friend or relative freely chooses to assume that responsibility. A friend or relative who chooses to transport the patient is not entitled to reimbursement from the State for the cost of the transportation. An officer acting in accordance with this article is immune from civil liability. Upon entering a written agreement between the local law enforcement agency, the governing body of the local government, and the directors of the community mental health centers, an alternative transportation program utilizing peer supporters and case managers may be arranged for nonviolent persons requiring mental health treatment. The agreement clearly must define the responsibilities of each party and the requirements for program participation.