How much to charge for damage to garage door frame?

[Wilson Davis]

Hello, a tenant moved out this past weekend, and we stopped by after they had left.  The only damage to the property was from were they backed the moving truck into the a spot and dented the aluminum flashing at the top of the garage door frame.  I wouldn't have noticed it if they hadn't of tried to touch it up with white spray paint and got over spray on the beige siding.  Is there a way to come up with a cost to bill them or do we just let it go?