If an acquitted person is committed under this subchapter, the person's status as a patient or resident is governed by Subtitle C or D, Title 7, Health and Safety Code, except that:
(1) transfer to a nonsecure unit is governed by Article 46C.260;
(2) modification of the order to direct outpatient or community-based treatment and supervision is governed by Article 46C.262; and
(3) discharge is governed by Article 46C.268.