and if you look up the ordinance, if the OP was asked a question like:

didn't you see that speed limit sign back there


and the op said; no, I missed it


it is actually a valid citation as due to the OP's inattention, he did not see the speed limit sign.


but along with the others, I suspect it was intended to urge you to pay the ticket without contesting it. I think that is a good idea, unless of course you actually have a valid defense to a speeding ticket.