I know. It has since been put out of it's misery, as it's head was swelled up from the tab on it's neck. It wouldn't be able to eat anything and would have died anyway.follow this link https://www.nps.gov/sagu/nonvenomous-snakes.htm
and scroll down to Long-nosed Snake (Rhinocheilus lecontei) the picture is a dead ringer for your snake. it's in the non-venemous section.
My first guess was some kind of king snake, but I think this is closer. Until you're sure, err on the side of @Parront, anything is possible.