Drew, good stuff, but that probably isn't a coyote in the pic.
I done some work with archeologists and I've pressed them to investigate the dogs that were with early humans, in order to track the early humans movements. And they tell me that they can't really tell the difference between wolf and dog DNA. Not to the degree that they could prove anything scientifically.
The other thing is that wolfs have a really picky ritual that they go through to breed. If it is a pack, only the alpha pair breed. And they tend to hate coyotes and kill them on site. Breeding between wolfs and coyotes would be unusual to say the least.
But with the way things are so screwed up nowadays anything could be possible although the dog thing is very likely, especially husky's or malamute that already have wolf in them.