It actually happened earlier in the day, and was replayed later n....but here it is 24 hours later and the question has STILL not been answered.
I would have done exactly what he did had I been in his position.
I think Shep had a reality check from the "N.O. dodge the bullet" chant he began, too early on.....and I think he's even feeling bad about that....since that ridiculous comment he made in haste...I think he's be doing nothing but trying to help somehow....asking every person who emerged from the waters, "are you okay" first question out of his mouth....trying to get help for people...flagging down police officer for that mom and newborn baby (5 day old) yesterday...a sick 3 year old boy....he's trying to make everyone else wake up....like he did...imho.