I think I found blocking mode with the new update (I'm on stock non-rooted Verizon). I just used quickshortcutmaker to find it. Can anyone else confirm?
I was able to enable it and now I see the icon in the notification bar. The only annoying thing is that the icon stays there at all times even if you only have it enabled between certain hours. That could be a deal breaker for me for normal use. The notification bar is too filled up with useless icons to begin with. Darn!