Fight the ticket, plead not guilty no matter what.

Hiring a lawyer helps, but might not be worth it economically. Chances are that the cop will negotiate with you and lower the point. Ask for NO points (fine only) reduction.

It also depends upon where you got the ticket. Viriginia has stricter laws while some counties in NY have arbitrator representing the cops. If the Cop doesn't show up, you will win the case in most courts (except for those where arbtitrators are present, or where a COP asks another cop to represent), so maybe ask for a later date.

Best advice: Drive slow. Atmost 9 MPH over the zone in highway (practical advice) and 0 MPH over the zone in residential area.