Wow, really interesting read! A very similar situation happened to a friend of mine...he was overdosing in the bathroom and his girlfriend happen to walk in and called EMS. This was before naloxone was distributed so they didn't have access to it. Luckily the EMS arrived in time.
Very interesting what she said about it being a solitary drug, that really does amp up the overdose potential and as we know someone who is overdosing cannot save themselves...