I have no interest in risking the gt there.
I'd keep that thought!!!
There is no "friendly" place to park a GT at that venue 'far as I'm concerned. Leave the GT in a 'safe place' at your hotel (or?) and take a cab.
(And BTW, as I recall they haven't had valet service at WestWorld for several years now...at least they haven't for "Goodguys" events...not that I'd recommend using the service anyway. I did that
once...)
Edit:
"Note About Parking at WestWorld
WestWorld is a very large venue, and many events held there attract thousands of visitors.
That means you won't be able to park in the lot at the entrance to WestWorld. The signage is usually very good along the Loop 101 service road, letting drivers know where to go for various types of parking (passes, handicapped, etc.). For the larger events, be prepared that you might have to take a shuttle from your parking lot, or walk a couple of blocks. General parking (
no special pass) is often directed to 94th Street, just south of Bell Road."
So, there you go, I guess...