polkit in openSUS11.2

I need some help getting polkit configured in openSUSE11.2 to restrict access to USB drives.

I’m trying to restrict access by editing the /etc/polkit-default-privs.local and /etc/PolicyKit/PolicyKit.conf files. My configurations appear to be written to the files properly, by running set_polkit_default_privs, but then when I plug in the USB drive it shows up without any problem. It’s supposed to be disabled.
(I set the session parameters to no:no:no for the action org.freedesktop.hal.storage.mount-removable)

I’ve tried rebooting after making my changes, still doesn’t seem to work.

Any ideas would be very much appreciated.