Lost small vivid green pet tree frog at a park during a picnic in Florence, Alabama.

I lost my pet green tree frog while I was at the park in Florence. I had him with me during a small picnic and somehow, he managed to hop away. He’s quite small, about the size of my palm, and very vivid green with a few light spots. I'm really worried about him and would appreciate any help in finding him. If you see him, please let me know!