Except as specifically provided by law, the provisions of this chapter shall not be construed as relieving any individual of the expense, if any, of any treatment, including any person who is subject to an order of isolation issued pursuant to Article 3.01 (§ 32.1-48.01 et seq.) of this chapter or an order of quarantine or an order of isolation issued pursuant to Article 3.02 (§ 32.1-48.05 et seq.) of this chapter.