They said in their intro that their reporter Carter Evens was "right in the thick of it" and that he had a cell phone which he put in speaker mode "so we could all hear" what happened.
Then they played a recording of that audio. If memory serves, they bleeped out one or two words, which may have been profanity.
I interpreted the phrase "in the thick of it" to mean he was at the scene, perhaps between the LEOs and Dorner's location.
I only heard the recording once.
If Evans was close enough to cause a tactical complication - as someone mentioned above - I wouldn't be surprised if that's the only time they play that particular recording.
Thanks for the info. Also ping to post #17.