Presentation mode with ScreenSave timeout

Hello,

I have a director that is bothered by the company policy that after 10 minutes on inactivity it throws up the screensaver and locks the workstation.  Apparently moving the mouse or touching the keyboard is too distracting when watching a webinar.  I didn't create the policy just have the joy of enforcing it....
So the President would like to know if there is a way to override this group policy when they are doing or watching a presentation.
Other than making an exception for the user where the policy doesn't apply to them I wondering if indeed there is way?