I don't need legal advice. It's personal advice. I got on-shift today at a hospital (volunteering), spent two hours in trauma, and then four more hours sitting by a patient who was a .215 etOH helping her feel better. I left before she was discharged, and I just want to be sure she's okay. However I'm not sure what ruling that would be under. Since I'm not a paid employee, it shouldnt be a problem, but I'm not sure.
If you're just looking to confirm that she was okay, check with the doctor/nurse that discharged her. That said, if you're looking for beyond just that, it might be a sign you're already in murky waters.