Most of the DMV information like liscence and registration checks are done by computer. And let's face it that is going to be 99% of the traffic.
Also, I have noted that when you are scanning NYSP in a scanner with let's say Buffalo PD. The small amount of traffic that NYSP generates is often missed as the scanner spends more time on the busy channels and remember, you generally will only hear the base and not the cars.
When I put the scanner on manual for the NYSP base channels I find that they are there but they don't have much to say. They get right down to business and a "dispatch" could last 5 seconds. Ex: "Patrol to 13.5 North for a PIAA" and that's it.