When I was little, we had a couple of Keeshond dogs. My mother put them in dog shows at one time. If they got out of the house/yard, they would go running all over before coming back home. One of them showed up dead on the side of the road nearby. It was shot and someone had dragged it to the road not far away. I don't know why someone would mistake it for a coyote, but I won't rule out that it got close to someone's chickens or livestock.
For this story, I would have thought it was obvious if a wolf was approaching with intent to attack. I don't know much about wolves.