US passport, navy blue with gold crest

Found a United States passport this afternoon around 3:15pm on the sidewalk outside the Coronado Theatre on Main Street, Rockford. It's a standard navy blue cover with the gold seal and 'United States of America' text. The back has a small coffee stain and the bottom-right corner is creased from rain. Inside, the photo page shows a name starting with 'A' and a legible issue date; it clearly belonged to someone traveling recently. It feels important to someone, and I’d really like to return it to its owner—if this is yours, drop a note here and we can arrange a handoff.