Orange bearded dragon, 8 inches, lost near Philadelphia Zoo

I lost my orange bearded dragon, Ember, yesterday around 3pm after I stepped out to grab a coffee near the Philadelphia Zoo. Ember is about 8 inches from snout to tail, with a warm orange body, pale yellow belly, and a faint green stripe running along the spine. He has a black beard when he's stressed and a small blue crescent-shaped mark on his left shoulder scale that helps me identify him. I was walking along Girard Avenue outside the zoo's main entrance when he wriggled free from his harness and vanished into the low shrubbery by the sidewalk. Ember means the world to me; he's been with me since he hatched, and I really need him back.