well it will need to be heated to be bent back! it it was just bent to the side then you could possibly bent it back slowly.
the 3 options open to you are
1)bend it back and pray you dont snap it off/weaken it
2)ask a mechanic to do it
3)phone the distributors and ask them what they advise.
if you do snap it off its not the end of the world as a good frame builder can replace the drop out with a new one.