Legal Question in Criminal Law in Michigan

Not very likely. You need to hire a local attorney who can find out where your case sits. If you ignore it, you will be picked up on an eventual warrant and be in a bad position with the court.

What was the felony traffic matter? That's strange for felony traffic.

If you received a notice to appear in court, you and your attorney must appear. You can read more at:

www.AggressiveCriminalDefense.com

Do not ignore what the citation tells you. If that means that you show up according to its terms and formal charging documents have not been filed yet and it is "a wasted trip", so be it. Felonies are not prosecuted on "tickets". I am guessing that you were written up for OWI 3rd, possibly, and maybe some other lesser charges? Felonies are issued / authorized by a prosecuting attorney's office after they review the police reports, driving / criminal record, lab or other testing info, etc. Sometimes charges are issued the very same day the report is filed with the prosecutor, sometimes it takes days; sometimes the prosecutor wants follow-up work done by police before the case is issuable; sometimes lab report results are needed (which can take a week or so for blood alcohol information, and can take more than a year for drugs-in-the-defendant's-blood results to be reported). If those delays happen, formal charges might be issued weeks, months or more than one year after the crime date.