I ride or drive almost daily on a stretch of road that is inundated with deer. I roll right on by. As long as they’re not spooked they stay in place. Remember their flight reaction is hard wired to “run”
The two times I’ve hit deer they were at a dead run due to some reason or another. The first time I was in an old company truck made with real metal, nothing left of the deer and just some fur on the bumper. The second time I was in my Pontiac with loud exhaust and a whining supercharger. Almost totaled the car.
I had a buddy who got t-boned by a deer while riding his bike at speed. Broke his leg, but the bike was okay. Talented deer to head butt a moving target!