Blue queen comforter set with monogram

I found a blue Brooklinen queen-size comforter set with two matching shams this afternoon around 3:15 pm outside the Tucson Mall on N Oracle Rd near Dillard's. The duvet cover is a soft cotton blend, and the sham fronts have a small white monogram 'AR' stitched neatly. The color is a rich denim blue, and the fabric feels barely used. There's a tiny coffee stain on the underside of the duvet cover, but otherwise it's in great shape. It obviously belongs to someone who wanted a coordinated look for their bed, and I'd really like to see it get back to its owner.