Nah, never came across that driving here 35 Years. My 57 got 5mpg with a predator carb on its 351C, the 65 Barracuda 340 I had was never checked. What could they check? There were no emissions crap on those to check. (my 65 S had an air cleaner breather tube and a pcv valve, C.A.P stuff..the 57 came with a road draft tube! My friend had a 74 Toyota Corona. All he had to do was provide a carb preheat hose to the air cleaner. So just a sniffer and visual check as it was still smoggable. Passed 3 years in a row. I'm not sure what the ticket would say on a pre 66 (back then) if it were spewing smoke and I'm not sure what test would clear the fix it ticket, a visual no more smoke from a CHP officer?