Think about it this way. Across NYS how many thousands of inspection are done everyday? Even if all the data could be logged and stored for a short period of time you would have to do something to throw a red flag. I do know for a fact that a guy I worked with got in trouble because he plugged the wrong vehicle in for an inspection. He had a truck and a car that were both getting a sticker was in a rush and accidentally plugged the truck in twice. DMV flagged it and paid the shop a visit about a month later. Wound up being a big headache and one very pissed customer. Moral of the story make your stuff legit as possible and don’t call attention to it and you should be fine. In the case above the inspections were flagged, because the machine saw the same vin from the PCM twice even though different registrations were flagged for inspection.