A PMHNP has been practicing for three years at a rural behavioral health clinic in a reduced-practice-authority state under a collaborative practice agreement (CPA) with a psychiatrist. The collaborating psychiatrist notifies the PMHNP that he is relocating out of state in 30 days. The clinic administrator asks the PMHNP to continue seeing her current patient panel without interruption. Which of the following represents the most appropriate course of action for the PMHNP?