Just as an update, I just called CO to check my *A status for upcoming flights on Thur and they informed me that my record still reflects *S. They also told me there is nothing they can do to update my status, as it is UA's responsibility. Of course, UA just confirmed that they transmitted my updated *G status to all partners, including US and CO - who have yet to get the message, apparently - and that there is nothing they can do since CO should have received the information and once CO has it, it's their responsibility to update their systems.
So now there is a huge black hole between UA and US/CO in which my *G status is just floating around in limbo and nobody is willing or able to try to fix it. At least it's not a big deal on CO, which (i'm told) is just a big Elite cattle call to board.