For 7 years I never had a vehicle plugged in at an inspection station until he got busted. It all depends who you know and how many fucks they give. By the book? Sure, probably close to being the same. Last time I got my inspection nothing is electronically submitted with the OBD device or whatever it is, its handwritten on a form.
State and Federal, state isn’t much but its still there. I know New Hampshire has no sales tax which is sometimes worth the drive depending on what you’re buying: State taxes: Vermont