Deer collisions are no joke..no matter the size
I almost hit a mule deer stag on the highway in MO, but luckily it cleared full over the hood of my car. If I didn't slam my brakes it would have went through my windshield. This was during breeding season, so that's something else to consider.
Like ball pythons, deer are crepuscular. So their eyesight is adapted to dim lighting. The sudden light emitting from a car is why they freeze in the road like they do. It literally blinds them.
That and because their eyes are set on the sides (peripheral vision), forward sight is restricted,...that's why you sometimes see them jump directly into cars, or even through her about them jumping through store windows. They partly see the reflection off the glass and misinterpret the blind spot.
1.0 Pumpkin Pied BP, 0.1 Bearded dragon, 1.2 Leopard gecko, 0.1 Ornate Pacman Frog