What do these family member expect

The other day I had to send one of my residents to the hospital d/t illness. I attempted to contact two of the family members, but nobody was home. I left a message on their answering machines for them to call back ASAP because I had no other contact numbers availible. I sent the resident to the hospital. This resident needed to go, S/S of resp. difficulties and a full code. This resident needed to go where they could be treated. Well today the family comes in all ticked off because we did not notify them. I left a message and they chose to not return the call. I refuse to leave any type of personal info. on people's answering machines due to HIPPA. What do they expect when they will not return phone calls? I just had to vent.