Not that I've ever seen, but I imagine he goes to the same Starbucks as a matter of routine. After all, the first time he went in, he ordered his coffee, gave the barista the patented Gibbs-glare when all the bubble about milk-type/bean-type/cup size started, and from then on, they just know what to get him, and he can't be bothered to go to a new Starbucks in order to break in a new barista to just how he requires his coffee.