No, but using free WiFi without authorizations isn't exactly a "moral grey area" anymore either. Michigan, for instance, has a law on the books that allows for the prosecution of anyone found logging on to a network without permission. A guy was actually arrested for logging on to a cafe's free hotspot from his car since the network was advertised as "for customers only" and he never set foot in the cafe.
Are you likely to be caught? Probably not, but it is interesting to note that simply logging on to the free, non-protected wireless at your local cafe from the parking lot is illegal enough in some locales to land you in jail. Actively trying to crack an encrypted network is just more universally illegal.
http://arstechnica.com/news.ars/post...m-his-car.html

