Users logoff when logoff hours are over.

I am trying to force some users to logoffo their computer at night b/c they keep fogetting to do it. I set their profile to not allow logon from 11pm to 1am in AD users. I then set the group policy to Enabled: Auto log off users when logon expires (local).

I used me to test and I left my PC locked but logged in. When I came here this morning. I was still ogged in.

What am I missing!!!