I'd ignored the network called "StreetNet" before because it'd been redirecting my browser (like the pay-for ones do) and because it managed to kill Safari very effectively when doing so, hanging it at 100% CPU usage.
However, having done a bit of research earlier on and found out that it was meant to be an experiment in public internet access, I went to Boston Tea Party earlier on, persevered with Firefox, took a short demographic survey, and was happily hooked up for free.
So, now I know I can geek for free and drink strong coffee. And they're open until 8pm. Hmm. I foresee very little sleep in my future.