Carl has a nice whistle!!!
I burst out laughing. In the middle of this really dire situation, Carl comes along and saves the day via the most unrealistic, unpredictable means imaginable.
But you accept it because it's Carl Rodd, and he's a badass. Particularly if you read the Secret History. I wouldn't be surprised by anything from him after tonight.
That was a great scene. His compassion and concern and his matter-of-fact manner was a nice touch.
Pretty sure the walkie-talkie is a citizen band (CB) radio. It can change frequencies, including to frequencies that police use or monitor.