Report 39014: Passenger on I-75 spots a large animal near Myakka State Park

My husband and I were driving home on I-75, the day after Christmas. Our car just started to accelerate after being in traffic for over an hour due to an accident. My husband was watching the cars closely and I was observing the environment on my left side, as I normally do on a road trip. I looked over to my right and saw something large and black about a football field distance away. At first it looked like it wasn't moving, but I kept watching and after a few seconds I saw an arm extend and it move forward towards the woods. My first instinct was to think it was a bear, but then as I continued to fixate on the animal, I realized it had very long black hair and was extremely broad in the shoulder/lat area. I continued to watch it move forward  very slowly and realized it was in a crouched position but looked as flat and large as the top of a car, from my view. The whole experience was very surreal to me and I think I'm still in shock. The whole length of my viewing time was approximately 5-7 seconds.