Large canids and mistaken identity.

I'm sure this will get lost amongst the rubble of reddit, but I've had something spinning around in my head for the past 3 weeks, and I want to know thoughts, and similar experiences.

So I'm from the phelps county area, about 3 weeks back, I headed to visit my parents pretty late in the evening, they're only across town for me, and I take back roads to get there and back. Anywho, so it's nearly midnight when I decide to head back home. On the back road I took to get home, I saw a very large dog, or something of that nature, slowly lumbering across the road. We all know there's no wolves in the state of missouri, save for when a small pack or two slips over state lines a little bit, but mid mo? Extremely unlikely. So I tried to let it slide as a beefed up coyote. The problem is, the biggest coyote I've seen in the area would have been easily 60 lbs or so, maybe the size of an Australian shepherd or something of the sort. But when I say this thing was big, I mean it was BIG. It looked like it would have weighed 85 or 90 lbs, long thin legs, long thin body, grey coat with some brown tinges to it, blocky head, and had I been standing next to it, it's shoulder would be nearly hip level with me. Logically it should have just been a freak of a coyote, right? I mean I've heard rumors of singletons cutting through the middle of the state, but much like my explanation, nothing confirms it.

Let me know in the comments what you think, or similar experiences.