If a power of attorney does not provide the method for an agent’s resignation, an agent may resign by giving written notice to the principal and, if the principal is incapacitated:
(1) To the conservator or guardian, if one (1) has been appointed for the principal, and a coagent or successor agent; or
(2) If there is no person described in subsection (1) of this section, to: The principal’s caregiver;
(3) Another person reasonably believed by the agent to have sufficient interest in the principal’s welfare; or
(4) A governmental agency having authority to protect the welfare of the principal.