The local laws of the state you are arriving in apply, so you will be limited by what texas law allows. Customs will not allow you to bring in anything past what the local law is, so if you are trying to bring in a large amount, you may want to enter in a different state.

While Texas law does not affect the duty paid, it will affect what you can enter the country with.

Also, you should be aware that state laws might limit the amount of alcohol you can bring in without a license. If you arrive in a state that has limitations on the amount of alcohol you may bring in without a license, that state law will be enforced by CBP, even though it may be more restrictive than federal regulations. We recommend that you check with the state government before you go abroad about their limitations on quantities allowed for personal importation and additional state taxes that might apply.

If you decide to do this, make sure to declare it. Chances are they will waive you through without any hassle, but if you don't declare and they find it things may be quite different.