Lost black tuxedo with matching bow tie left in a friend's car in Southern Illinois after a wedding reception.

I lost my black tuxedo with a matching bow tie while attending a wedding last Saturday in Southern Illinois. I believe I left it in the backseat of a friend's car after the reception, but I can't seem to track it down. It has sentimental value, as it was rented for the event, and I would be grateful if anyone finds it.