Identifying possible ribbon or garter

[phillycyclocross]

Not too many possibilities. Eastern garter, ribbon, red bellied (very small) or northern brown snake (dakayi). I'm still thinking that the 2 stripes was an illusion / misperception. The latter 2 are very small but have a wide stripe that sometimes looks like 2 parallel stripes.

It's a distinct possibility. Even if I did see it wrong do ribbons have bold orange stripes?