Well, enough force seemed to do it.
I found out the front isn't a real retainer ring. That little plastic piece with the lens markings is just "double sided adhesive" stuck on. So here's for future reference to anyone who's looking at cleaning their 18-200.
The 18-55 Does screw out normally
|_MG_5100 by tim and jan|
from Welcome to the Saloon!
|The Grimm 11 year old by Ryan Gardner|
from Trick or Treat
|Heron with fish by APenza|
from A Big Year - birds