Go to the court traffic window with proof of insurance and both tickets. They will clear them both at the same time and give you a court date for the speeding ticket. The Sheriff will inspect your car for the tinting violation.
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You will have to fight both tickets. Get your tint removed and correction noted by the sheriff. Bring your proof of insurance to both hearings. The officer probably paced you. Going with the flow of traffic is not a defense.
If the officer determined your speed by pacing (following you) as my colleague previously mentioned, you should seriously consider getting a traffic ticket attorney. I would not recommend anyone fighting a pacing ticket on their own. If you go to trial on your own, I would be very surprised if you won. If you do though, go to trial on your own and win, let me know. And I'm not talking about the old "maybe the cop won't show up" strategy. That's not a strategy. It's spinning a wheel at a carnival. Regardless, I wish you the best.