Lots of deer diseases going around, and threatening the population. Send the photo to a wildlife biologist and get it checked out. Either way, probably needs culling.
Wow, that will be a once in a lifetime opportunity, especially in your front door. I know bucks go crazy looking for breeding rights, but this takes it up several notches.
Oh, and a good thing you had your phone with you, we never would have believed this story without!
I see you're from pinelog area, some nice big bodied deer there. Back in the eighties I hunted pinelog area and there were some big bucks back then, and that was rare here in Bartow.