Blue flannel queen sheet set

I found a blue flannel queen sheet set this afternoon around 3:15pm in the parking lot behind the RiverCenter on 4th Street in Davenport, Quad Cities. The set is clearly queen size, from the brand LushHome, with a soft, brushed feel and a few wrinkles from being tossed around. The fitted sheet elastic looks intact and the tags are still on. It includes a fitted sheet, a flat sheet, and two pillowcases. There are two small identifying marks: a white embroidery of the initials 'KM' on the corner of one pillowcase, and a tiny coffee-stain heart near the hem of the other pillowcase. I figured someone might be missing it, and I’d love to get it back to its owner.