Can I detect if a user has overridden the AA mode?

A small percentage of my users seem to be using non-default settings in the “Manage 3D Settings->Global Settings” panel. If “Antialiasing - Mode” is set to override or enhance, then my pixel-perfect sprite-based rendering goes terribly wrong.

Is it possible to detect when the AA mode being overridden, so that I prompt the user that that is the issue?