(1) A principal or a principal's health care agent may, for a fee, file the principal's power of attorney for health care instrument, for safekeeping, with the register in probate of the county in which the principal resides.
(2) If a principal or health care agent has filed the principal's power of attorney for health care instrument as specified in sub. (1) , the following persons may have access to the instrument without first obtaining consent from the principal:
(a) The health care agent for the principal.
(b) A health care provider who is providing care to the principal.
(c) The court and all parties involved in proceedings for guardianship of the principal under ch. 880 , for emergency detention under s. 51.15 , for involuntary commitment under s. 51.20 , or for protective placement or protective services under ch. 55 .
(d) Any person under the order of a court for good cause shown.
(3) Failure to file a power of attorney for health care instrument under sub. (1) creates no presumption about the intent of an individual with regard to his or her health care decisions.