I think it's fantastic that you did what you did. I think there is far too much emphasis on sticking to procedures when common sense would dictate something very different. In this situation, who's to say he was even capable of rational thought? In a way, it scares me that rules might cause other professionals to act differently in this sort of situation, as all sorts of conditions could make a person think they were OK when they're not. What you saw later on really confirms you did the right thing. If you had left him, he would have died, wouldn't he?