I saw Shiner Bock at the park. But in my opinion, it's one of the most overrated beers on the planet. I lived in Texas for two years, and everyone loves Shiner beers, cause they're from Texas! So I tried it, and was sorely disappointed. But, you can find it at Nats Park. Somewhere.
Shiner Bock was a love affair I started in college, and consummated many a time. I have told Belgians to their faces that Shiner is the best beer in the world, and endured their ribbing. Of course the second best beer in the world I had in Belgium. Shiner is best from the keg.