Most of the time here is a little thing called "the rut" in the fall, it is when they get twitterpated. A buck will charge almost anything that gets between him and his doe, be it another buck or a semi... they fear nothing. Does are just about as goofy too. During the summer you might see 1 or 2 on the shoulder on your way to Omaha (about 60 miles) During the rut, 20-30 one way is the norm.
The one I hit ran beside my truck for awhile (as it was skidding to a stop) before it turned in front of me and caught my bumper.
My brother was stopped at a stopsign and had one ram into the side of his pickup, it dropped and twitched for awhile, then got up and ran away. Didn't hurt the truck at all.
What kind of deer was that? I swear the 9ptr whitetail I got a couple years ago was over 200lbs on the hoof as I was dragging him to the truck. Good old cornfed venison.