I guess so.
Maybe she was just in a bad mood / tired on those days in Hawaii. I wonder if any of the members of AHS in Hawaii have heard stories as well?
About the friend: I don't think it was so much interaction with Ayu, since they were sort of just 'on the set' and got to see her. She said that Ayu was amazingly beautiful like 'O___________O!', but even though she was pretty, she wasn't that polite to her friends that worked in that mall that Ayu went to [the one in on my way when the bodyguard is carrying her and they both have Starbucks]... that's just what she said to me. It was something that she stressed that I called absurd at first listen :p So I wasn't exactly accepting of the story either..
I do think Ayu might be nice in real life, but I'd rather not take the chance of having a bad experience that might ruin my views on Ayu..
edit: here's the page of the person that met Ayu:
http://www.mindwavemedia.com/ayu-irl/index.html
!___!~