JCO: book signing

I'm going to see JCO on Saturday for a reading/signing for Female of the Species. I would like to bring a copy of my favorite of her books to sign  as well as the new book. Does anyone know if she would frown on this? I asked the bookstore sponsoring the event, and they did not know if she would be signing things other than the new book. I have a first edition of Son of the Morning that I would love for her to sign.

--Chris