Just thought I'll let you all know that I found a way around my problem.
I used this article here for reference:
Local Group Policies - Apply to All Users Except Administrators
However I selected a specific user rather than a group. I then went to C:\windows\system32\Group Policy users (hidden folder) copied and renamed the gpt.ini to gpt.ini_Off and the regestry.pol file to regestry.pol_off.
I then proceeded to setup my restrictive policy to the user account. Once finished I created another back up of the same files (gpt.ini_on and registry.pol_On).
Now by writing a little bat file to copy the relevant files in place you have the ability to either apply the policy or completely remove it from the specified user account...