[C3L1CA]

If you have enough time off I see no harm in going in to fight it. Worst that can happen is you lose a few hours of vacay, get the afternoon off (if you schedule the hearing office apt in the afternoon) and you learn how the process works.

I don't think you could really come up with a good story while you were speeding, I'd be honest and tell the same story you told us and hope for the best