If you do repair that tire let me know what roads you usually drive on so I can avoid driving next to you when it blows. Don't risk your life or anyone else's
On a more helpful note:
I'd contact Bridgestone customer care and ask them if they can help you. They will then give you a claim number and send you to your nearest authorized dealer. From there the dealer will do an inspection, and contact Bridgestone to try to get you some goodwill credit on the tire. It really depends on the rep you get at Bridgestone, but you may get a hefty discount. Second option like stated before is to mount your spare tire onto your alloy wheel, and find a used/cheap tire for your spare.