I set up WiFi at home about six month ago. I can pick the local hotel's wifi, (but not room service) and its half a mile away. They password protect it so they can charge £5 an hour. I don't think mine is powerful enough to reach the hotel, otherwise they'd all log on via me.
Conclusion. If the ACO have it, they will have a protection system, but drive down the road into the housing estates and stop when you get a signal.
And don't the press have Vodaphone cards, so they can hook up anywhere?