SEP 11 - policy doesn't seem to push to endpoints

I have a large number of machines that I need to disable tamper protection on so i can automate uninstall.  I have configured the SEPM policies to disable tamper protection as well as removinig the password protection on uninstall and other prompts - but it does not seem to be pushing to the clients?!?!  I made these changes on Friday afternoon (2 days ago) - yet I am still prompted for the password to get into the client and tamper protection is still enabled.

what am I doing wrong??

thanks in advance

sb