Navy blue L.L.Bean king-size flannel sheet set

I lost my navy blue L.L.Bean king-size flannel sheet set yesterday afternoon after crashing at a friend's place in Soldotna, Kenai Peninsula. The set includes a fitted sheet, a flat sheet, and two pillowcases; they're thick and warm, with a white pine-tree border along the hem. The fitted sheet has a small snag near the corner, and one pillowcase has my initials 'PP' embroidered in silver thread. It was a gift from my grandmother and carries sentimental value, so I’d be grateful to get it back. I last saw it in the guest room behind the Safeway on the Sterling Highway in Soldotna, and I’m hoping someone who picked it up can share it with me around there or at the nearby Riverfront trailhead parking lot.