Crew advised family member of their responsibility to care for the patient. There was no other assessment or treatment provided. No refusal was signed due to the patient's inability to understand and sign the form. The crew left the scene 16 minutes after arrival. I think not.
Several questions do come to mind.
A proper chief complaint would be something that the patient complains of, not a disease process. If the doctor is approved to give medical control the answer may be yes. But there is a catch. The paramedic should have given complete assessment information to the doctor. In my opinion, the crew has no defense for abandoning the patient.