How is talking about this going to kill people? Does this guy get to decide how to set the traffic cameras? He is just expressing his opinion.

+ he wasn't trying to commit a crime, he was trying to have a discussion with the state about their scummy practices. the "is/is not engineer" was just a pretext to tell him to STFU. Personally I don't think that being an engineer changes anything he said/did. If random Joe want to challenge the timing of the yellow light sure go ahead. If this guy who has worked in another country as an engineer does this... whoooaaaa... put the brakes on.