Oh man! Glad you were their to act as UN.

I'm glad my Camponotus are't quite like that. They get out often, but it's usually only 1 or 2, and when I find them, I bring them right back.
Found one in my kitchen the other morning. >__<
And since I know I've got 14 workers, and then one died, so I checked in the nest but counted only 11.
So yeah, for eb-ing so big, they're quite hard to locate once outside the basin. Hehe, it's all good though, aslong as the queen stays in place.