I like MikeV' answer to just have a spare needle and nozzle around. You can always play with a tweaked part later. I've always recycled when I can so repairing an airbrush is part of my nature. Mike is also right in saying use a sheet of glass and twist the point of the needle to straighten it. It works.
Mike...Hayward is too close to San Francisco for me; too much traffic (scary). I usually go through Hayward at least once a week to either southbound Fremont, San Jose or north to San Leandro. I like it here in the flatlands of the Central Valley. There are lots of nice islands, boats, sea-going freighters to enjoy here. Lots of room here.