There is a very simple reason why so many people are advising the OP to get advice from a lawyer. Reckless driving is a serious charge that is not the same as an equipment violation or simple speeding, it is a misdemeanor and there is the possibility of a large fine and/or jail time...$2500 and/or 1 year in jail is the max punishment. That's why it is a mandatory court appearance. Even if he gets a slap on the wrist for a punishment but he is convicted of reckless driving, then he will still have it on his driving record and the insurance company will pick it up. Not only that, but he will also have a criminal record and will always have to put that conviction on job applications, etc.

The OP may be able to argue it down to a lesser charge on his own, but it's a crap shoot so why take the risk. A lawyer will know what the judge wants to hear and will be able to present an argument that will either get the charge thrown out or at the very least reduced to a civil infraction.