How do I unmange a client? I goofed

We bound 5 carts of laptops to AD and OD, someone grabbed my personal laptop and bound it to AD, OD. the AD isn't a problem but the OD is running Workgroup Manager, now my machine is controlled, "All my base" belongs to an Apple Workgroup Manager at this point and without reloading I haven't been able to find the preference to remove it. I have logged in as an Admin and removed the LDAP settings from Directory Access but it remains managed, it still comes up to the managed login window after I set it differently on the machine, its like this thing won't leave its mothership no matter what happens. Anyone know how to defeat this beast once its installed?