(a) An attending physician, health or residential care provider, or person acting for or under an attending physician's or health or residential care provider's control is not subject to criminal or civil liability and has not engaged in professional misconduct for an act or omission if the act or omission is done in good faith under the terms of a declaration for mental health treatment.
(b) An attending physician, health or residential care provider, or person acting for or under an attending physician's or health or residential care provider's control does not engage in professional misconduct for:
(1) failure to act in accordance with a declaration for mental health treatment if the physician, provider, or other person:
(A) was not provided with a copy of the declaration; and
(B) had no knowledge of the declaration after a good faith attempt to learn of the existence of a declaration; or
(2) acting in accordance with a directive for mental health treatment after the directive has expired or has been revoked if the physician, provider, or other person does not have knowledge of the expiration or revocation.