Louisiana and New York are both members of the Drivers License Compact. This agreement requires member states to report traffic violations received by a motorist back to the state where the person is licensed. So the New York traffic court or NYS DMV will inform the Louisiana Department of Public Safety (DPS) about this NYS speeding ticket for 18 mph over the limit.

The Louisiana driver's guide notes that the Office of Motor Vehicles (OMV) keeps a public record of all your traffic convictions and accidents for five years. Convictions for DWI are maintained for 10 years. This includes traffic convictions received in other states. If you receive excessive or serious moving violations, you may lose your driving privileges.

Also LA state laws notes that out-of-State convictions are processed in accordance with Section II, Policy/Procedure Statement # 2.0. These convictions may be added to the driving record from hard copies or computer reports. No mention of points transferring is mentioned though you can contact the Louisiana OMV to make certain.

Normally your options are to plead guilty and pay the fine for the speeding ticket and allow it to be placed on your LA driving record or to fight the ticket to see if you can get it reduced or dismissed and thus not shared with Louisiana. You may want to contact the court listed on your traffic ticket to see if New York has a traffic school as an option that would help you.