I recently bought a collected edition of the comic Existence 2.0/3.0 (published by Image), and it had a pretty funny error, too, though this one was a little worse yet not quite as funny. On the inside flap it says, "No part of this publication ... without the express written permission of [Creator]." I got a minor chuckle out of it.
Well, I don't really have a dog in the fight, but I'll say that there certainly are some SB locations that are known as not particularly friendly, the good ones (one of which I luckily worked at) would not have cared one bit. Obviously it depends a lot on the manager, though.
I actually used to work at Starbucks a while back, and it always baffled me why they didn't offer free wi-fi. Their whole mission, basically, was to give people a place to hang out. A place to come and stay and talk/work/drink coffee/etc. Non-free wi-fi directly and actively contradicted that goal.
It's funny that for "Twitter-haters," it seems like the standard argument they fall back on is, "I don't feel the need to tell everybody every time I go to the bathroom" (I've heard Lars Ulrich, among others make that statement).
Whenever I hear someone say that, I think "You know it can be used for other things, right?"
I would love to see a copy of the letter they use for this announcement. I'm sure it goes something like, "Though we can assure you we collected no pictures of a sensitive nature, the court has ruled that we are required to alert you to the existence of these harmless photos."