I DOUBT they'll permit back titles. They (handlers) take your order (book, cd, whatever) from you, open it, plop it on a table, artist signs it, you can blab if you want to, and then the next handler swipes up your stuff, puts their hand on your shoulder and ushers you along. They get pisssy if you ask for multiple copies to be signed to different people. Depends on the venue.
Been here and done it. Not surprised. It shows how little Jewel is involved, to be honest. This is a manager, pr deal - on both sides. No wonder she's only doing it for a month. Soul sucking.