Hawaii-based Airlines - $100 off lowest published HA fare to MNL @ L&L Hawaiian BBQ

I just visited one of my favorite eateries, L&L Hawaiian Barbecue (aka L&L Drive-Inn) in Honolulu. They are giving out discount coupons of $100 off the lowest published fare on Hawaiian Airlines' non-stop service to Manila, Philippines. According to the coupon, the booking period is now until April 17 for any available flight in 2009 (although June and December are blacked out). The person at the counter said you can pick-up the coupons at any L&L in Hawaii.