Few thoughts we don't know the weather conditions last night in that area, but the policeman said it was quite bad, and he had an accident which in real life does happen, "that one was for the Rambo’s" which would explain needing help, omg even instructor’s and fit ones need help, imagine being overweight and heart disease what chance then?, he had to fight hyperthermia due to the fall in to the river, I would say this man did a good job, getting out alive is that not enough, for some of you?.
Or he could be after a quick news story raises some media funds; I mean he is from London after all.