If a mentally ill patient from an out-of-State mental health facility is found to be in this State without permission and upon satisfactory identification of the patient and the request of such facility that the patient be returned, he may be taken into custody by proper public officials and transported directly to the out-of-State facility or may be detained in a State mental health facility until such time as transportation arrangements can be made or the patient’s health will permit his return. The state requesting the return of the patient shall pay all costs of, and incidental to, the transportation and detention of the patient.