(a) Immediately upon the effective date of the appointment of a short-term guardian, the short-term guardian shall assume all duties as short-term guardian of the person with a disability as provided in this Section. The short-term guardian of the person shall have authority to act as short-term guardian, without direction of the court, for the duration of the appointment, which in no case shall exceed a cumulative total of 60 days in any 12-month period for all short-term guardians appointed by the guardian. The authority of the short-term guardian may be limited or terminated by a court of competent jurisdiction.
     (b) Unless further specifically limited by the instrument appointing the short-term guardian, a short-term guardian shall have the authority to act as a guardian of the person of a person with a disability as prescribed in Section 11a-17, but shall not have any authority to act as guardian of the estate of a person with a disability, except that a short-term guardian shall have the authority to apply for and receive on behalf of the person with a disability benefits to which the person with a disability may be entitled from or under federal, State, or local organizations or programs.