I sold a bike recently, and 60' into her first ride, pedal strike bent the rear reflector off her 105 pedals. Happens a lot, but can high-side you in a heartbeat.
The idea with the machine shop straightening the crank is they have the mounting equipment, and be sure to tell them the direction of force that bent the arm. Correction has to be in the exact opposite direction, and you should be fine.
Plus, those guys love to do stuff like that.