HIPAA laws include EMS services if the patient is identified/identifiable.
HIPAA does indeed apply at the scene. To the PARAMEDICS. They cannot release information, etc. But it does not place a magic veil of secrecy around the victims of an accident scene, and prohibit all passersby from speaking of seeing Betty Lou getting put into the ambulance.
We can all spread the story as much as we want. Medical and rescue professionals may not. But John Q. Public? Absolutely yes.
HIPAA laws dont apply to some random guy on the street using his camera.