My friend posted this in Facebook. I was thinking Eastern Gartersnake, but I'd love to have a second opinion.

She wouldn't get closer to him to get a better picture. I hope I've convinced her to just leave him alone. :/
-----
Holly

1.0 Florida Kingsnake (Eddie Gein)
0.1 Lavender California Kingsnake (Belle Gunness)
1.0 Bearded Dragon (Charley Manson)
1.0 Vietnamese Golden Gecko (George Chapman)
1.0 Orange Marmalade Cat (Oliver)
1.0 Black Cat (Shadowfax)
1.0 Tennessee Walking Horse (Durango)

2.0 Kids (Justice & Trevor)