Power maybe off at the main branch? But that doesn't explain the cables there, not at all.
Or as usual they just told the guards some BS to stop them asking questions?
I've known people who get upset if you open a microwave oven door without waiting first.
That's because the rays are still bouncing around inside and will get out. It's the same reason
you don't wrap a potato in foil to nuke it, the foil hold the rays inside and they get you.
Even worked with a woman who had to keep electric sockets plugged to keep the electricity
from leaking. Dangerous stuff, that electricity. It might make you think.