Unpaid traffic citation?:
You won't receive a warrant, I'm sure one has been issued, but they are not required to notify you that a warrant has been issued. Call the court and make payment arrangements. You'll have to pay the original fine, plus warrant fees, possibly interest and whatever else the local laws allow them to tack on. Or you can just ignore it and the next time you get stopped for a simple traffic violation you can get arrested for an outstanding warrant.