I went to the signing in Chicago and she did not pose for photos, but you could take photos of her. When we got there, they told us no photos of her, you couldn't talk to her, and she wouldn't personalize the DVDs. About an hour before she arrived though, it was changed. Yes you could take photos of her, yes you could talk to her, and yes she would personalize them.
I think it just depends on her mood when she arrives at the store.
That was pure vodka, you poop!