Would the judge just give me time served since it's been 3 yrs
You've had a pending DWI for 3 years? Sounds like you should be speaking with an attorney regarding your case - you have what we call a Turner issue. There is some current litigation concerning the statute of limitations that the State has to prosecute people charged with misdemeanors, like DWIs. Speak with an experienced criminal defense/DWI attorney in the county where you were charged regarding this issue.