For home repair without the proper tool, perhaps rigging up an axle & clamping with a QR skewer will give leverage for bending. Then check that the loose end of the axle fits in the other fork tip, which should mean the fork tips are parallel.
A large adjustable wrench will have a difficult time grabbing & bending both tips of the fork equally.
Last edited by Homebrew01; 10-03-16 at 11:37 AM.