I routinely drive beer and liquor over from Canada since Ontario duty free is much cheaper than Michigan prices, if you buy enough to cover the tunnel fees, hassle, etc. It is pretty common for people to stock their entire wedding with Canadian booze since it is much cheaper.

You are basically allowed one liter of liquor, one case of beer (24x12 oz) or one bottle of wine duty free after being out of the country for 48 hours. After that, it is around $3 for each in duty. The actual cost varies by alcohol content - I think a 80 proof bottle of whiskey runs $2.85.

10 liters of beer is just over a case, plus three bottles of wine put you 3-4 "units" over your duty free allowance, so you are looking at around $10 in duty to the Feds. I doubt they will really want to hassle you over $10. I've brought back 3-4 bottles of liquor/wine by air and never been stopped. As for TX law, I also doubt they really want to call local authorities because you over imported a half case of beer.