Castillo de San Marcos admission ticket

I lost my Castillo de San Marcos admission ticket yesterday around 3pm. It’s a white cardstock ticket with a blue border about the size of a typical museum pass, with a slightly creased barcode at the bottom. I had tucked it into my wallet after buying it near King Street and the Cathedral Basilica of St. Augustine, and I must have dropped it while wandering toward the Colonial Quarter. There’s a tiny coffee stain in the upper-right corner and a faint blue initial M along the bottom edge—maybe that helps someone identify it. I really need it back; it was for today’s visit and means a lot to our little family trip.