Class C Misdemeanor and NSA

[Wanttoknow]

Hey,

Several years ago I hit a parked car and did relatively minor damage.  The car was already pretty trashed from other wrecks and I had very little money, so I drove away.  I feel pretty guilty about it, and have been by the area in the hopes of seeing the car to leave a note to make restitutions a few times.  In my state, this constitutes a Class C Misdemeanor punishable by driver's courses.  

I'm thinking of applying to the NSA soon.  Is this something that could keep me from being hired?  Should I talk about it during the polygraph test (I wouldn't classify it as a serious crime)?