Louis: Generally, NY statutory law sucks on legal stance and is often open to successful attack. The reason is that NY (and California) tend to push the 4th right to privacy and the 14th right to due process beyond Constitutional limits. Let's think out this dilemna. Traffic offenses are NO FAULT IN NY. That is, you are wrong even if you are right. If the issuing officer does not show up for the court hearing (likely in Middletown, Newburg or Goshen), the Judge will drop the charge without an attorney present. OK so far?
The NY seat belt law was and in most states is a secondary offense. For instance, the officer must FIRST stop you for a traffic infraction such as speeding or a tail light failure. If in the process of stopping you for the primary infraction he/she sees you are not wearing a seat belt, then a ticket may be issued for the lesser offense.
Prior to 2010, "not wearing a seat belt" was "Pointless" (no points on your license). This 2010 NY "points" law is very arguable as points raises insurance premiums akin to speeding or running a red light.
Now to the practical side. This attorney wants $450 bucks (roughly) and "guarantees" it will be dropped to a traffic ticket. Not wearing a seat belt is a traffic ticket LOL. Here is what your attorney is going to do. Plea bargain with the officer to lessen the charge to a non point traffic infraction (most folks do not know that a traffic infraction can contain points or be pointless at the officer and Township's discretion).
CONCLUSION: Drop the Attorney. Go to court and when you see the officer ask him to go out into the hallway with you. Plead you are really soory and your hemroids were bothering you soooo bad, you had to move around in the driver's seat which necessitated temporary removal of the seat belt. The officer will drop the charge to a parking ticket OR drop it all together. Just remember, make a good reasonable argument. GOOD LUCK!