Here are a few coupon links for coupons for gluten free bread products.
Udi's: Coupon for $1 off Udi's gluten free buns (Also, I have heard reports of Udi's coupons in blinky machines. I last spotted some a few months ago at a Kroger.)
Rudi's: Coupon for $1 off Rudi's gluten free bread
Glutino: Fill out this form and get a coupon sent to your home.