I am a retired police sergeant.
There is a statute of limitations on everything except murder. Misdeneanors are 5 years, and felonies are 10 years. Only some states have criminal speeding, so it depends on how fast you were going.
Also remember 11 years ago, courts were still transitioning to computers, so your ticket, depending on the size of the court, may not have made it into the system. Also, only certain jurisdictions, usually the small ones, actually issue warrants for traffic tickets, and the warrant is usually only extradiable from the surrounding counties.
I wouldn't sweat it, and I certainly wouldn't bring it to their attention.
Just my 2 cents.