It's Static Signal's turn to explain himself to Brisk Iron. Night Cap sticks around, but can't stay awake to wait for him. After his humiliation conga in Nightmare Heights, his journey back to Caballuston, and whatever ordeal he went through to get inside the museum (all explained in thorough self-exonerating detail in his report), he succumbs to the exhaustion.
And with that this night is finally, finally over.