^ I was recording The Bad Plus at North Sea Jazz a number of years ago, with body-worn 4060s, and a photographer actually started using my shoulder to support his lens. I could clearly hear the shutters, so I knew the DPAs could too. I quickly made it pretty obvious that this would not fly, so he moved on, but if you listen carefully to the recording it is audible.
With respect to the moment of silence at the end of a song, I agree that it can be really magical. Sometimes, just the decay of the last cymbal strike or strings. It's a shame that a lot of the time this gets crushed by raucous applause...