Where can you find those? I don't drink soda at all but I wouldn't mind trying some weird Diet Coke drink.
In my travels around the Alxandria area, you can find them at Five Guys, Moe's (Welcome to Moe's), and today from Noodles. It wouldn't surprise me if Coca Cola had a "Freestyle finder" on their web.
Edit: they have an app.
http://www.qsrmagazine.com/news/want-find-freestyle-there-s-app
