Sorry, I didn't see this earlier. I hope y'all had a good trip.
We make that trip a lot during football season. It's a quick 2 to 2.5 hours from Katy. We usually stop at the new Buc-ee's in Katy on our way out of town. We pick up some BBQ and some Jerkey and then drive straight to our hotel in San Marcos. On the way back, we stop at the Buc-ee's at 183 and I-10.