That's right. pre '96 or OBDII they just do a visual inspection of the emissions system for upstate.25 years and older and it's exempt but it's supposed to still be there. They just can't hold it against you if it isn't. like mine.
You highly doubt we'll ever see dyno testing upstate. By hooking up to the computer on OBDII they know the motor is within operating parameters. If it doesn't operate in that range it throws a code. That's all the dynos downstate are checking anyway. I'd bet the dynos go by the way of the dodo bird after many of the pre OBDII vehicles go to the scrapper and the shops make their money back on the dynos of course.