Drive thru daiquiri joints are peppered throughout SB Land. You can get tasty frozen daiquiris in flavors like peach bellini, strawberry, pina colada and white Russian. How does it work? You order a frozen daiquiri. They pour it in a Styrofoam cup, slap a plastic lid on top and tape the straw down to the lid, while making sure the tape runs over the hole in the top of the lid. It's not an "open container" unless you put the straw in.
Lots of Louisiana liquor stores have frozen daiquiri machines swirling multicolored alcoholic freezy drink treats. Got this one at Thrifty Discount Liquor and Wine, 3434 Youree Drive in Shreveport, LA. The only way it could get any better is if the neighborhood ice cream truck had a window where it dispensed adult beverages.