She eventually called her friend, Sue Massi, a woman who also volunteers to save local strays.
Massi got to the scene in 20 minutes, where they met an animal control officer from Buncombe County.
Together, they gently coaxed the dog into a car and took her to the shelter.
"Humans had let her down but hopefully the food, warm blanket and love I gave her will restore her faith in humans," Cortez says.
Indeed, in just a few days, it seems the dog, who was named Cassie, has already gotten her smile back. And, when cleaned up, she looks like a completely different dog.