Well, most in the machine would know in a situation like that, you never ever contact any previous known contacts including friends, relatives etc as they’re all being watched. In fact now they’ll all be investigated on top of being under surveillance.
BTW, this venue had 30 foot walls, and they came out of a manhole over a block away in a neighborhood adjacent to prison camp.
Regardless of what these guys are all about, this seems brilliantly planned out, which would likely include researching drain pipes and building construction plans. This took a while, but they had all the time in the world to plan every detail.