you should really brush up on your local liquor laws then Tex.

beer and wine yes the can sell just like Walmart. Hard liquor no.
.Texas is the only state in the U.S. that does not allow publicly traded companies to have retail liquor licenses. Been an ongoing battle for years.

If there is a liquor store connected to a Costco it’s a 3rd party. Usually WB Liquor in Texas. Have you never found it odd they dont have Kirkland branded hard liquor (vodka, gin, etc)for sale?

Who knows maybe Houston just cheated and used a buzzer every time TABC came over to alert everyone. Seems like something they would do? Cheers