He also left before any announcements were made.
The announcements regarding ZARP's closure were FIRSTLY exposed at around 6:00 PM GMT.
http://gyazo.com/f33d51d5e6252e6a2dfc7d ... 1365355147
And even then, there was plenty of chance to stay loyal. Just because of something that wasn't fully out of the water yet, doesn't mean you leave. Count up all of the people who have stayed, and communicated with Agent during the time.