I live in Austin but honestly, I don't know much about San Antonio. If you head northwest, you'll find the Texas hill country and it's an incredible hidden jewel. The Salt Lick barbecue is there. It might be out of your way but it's worth it! Also, you should check out Wolfdancer or Grey Rock Golf Club. And if you have a little more time, go ahead and play Crystal Falls Golf Club in Leander. I played it for the first time yesterday and it is the greatest bang for the buck on the planet!!!!
PM me and I'll give you my cell phone number.