I've seen two, both stocked with Park tools on cable leashes. One in front of the REI flagship store, and one in front of the largest regional bike club facilities.
I bike daily with a full complement of tools in my trunk bag, even a chain tool; I took it out to save weight and three days later met someone on the bike trail with a broken chain; Put chain tool back in kit. About the only things I lack in the mobile kit are chainwhip, cassette lockring tool, and wrench for it.