The authorities can be very deceptive and presumptive. When their website is visited, they may just assume that you got the citation in the mail, since statistically that is probably 99% the case. When you do not respond after that, they may not waist their time sending out more notices and threatening letters. They just wait a given amount of time and file with the DMV because they know that will eventually get you into their courts. I find it hard to believe that their normal protocol is to only send out one Notice of Violation and not follow through with a second, or certified mail. Actually, we know from posters here that they typically send out another Notice if the first is ignored.
Assuming they wouldn't follow through with the citation because they dismantled that intersection was the first wrong step.
Visiting their website may have been the second wrong step.
Not perusing websites like Highway Robbery before taking any actions with the citation is another.
It appears their website serves two purposes. It makes the motorist feel they have sufficient evidence to convict, and, it acts as 'bait' to validate receipt of the Notice to Appear. Cops don't offer up their discovery because they are nice guys. I have read that if you choose to ignore the citation, you put it straight in the shredder and take NO action whatsoever.
Maybe the OP can come back and tell us why he never got a second Notice if that is divulged to him. For the meantime, at least inquire about lawyering up.

