No reputable bike shop worth their liability insurance would allow an employee to rebend a fork. Maybe a light tweak on a fork dropout that wasn't parallel. Way better for the safety of customer and makes great financial sense for the customer to purchase a new fork, and pay for the labor to do it.
Kinda like when a customer takes a fall and crashes on the helmet. Even if there is no visible damage, why take the chance ? Just get another one for safety's sake.