I would never let family or friends in the back of the ambulance on a call like this. Sorry, but we're busy and they only get in the way. My experience is that people respect the fact that we have a job to do and they need to give us space to do so. Family and friends are welcome to ride along if they want, but UP FRONT.
Oh also BTW, there isn't anything "unique" about this from an EMS standpoint. Despite the circumstances, this is just another patient, and IMHO the job shouldn't change no matter who it is or how it happened.