No that girl didnt do it for a joke, she was seriously concerned for the deer, i still harrass her about it, so im not really too concerned about it.
They go through windshields All the time, i just got really lucky.
DONT READ IF YOU GET GROSSED OUT EASILY!
Story:
I heard about a lady who hit a male dear and the head went right through the windshield and the antlers pinned the girl down, luckily she had her cell phone, so she called the police and when they and the ambulance came with lights and sirens blaring it woke up the dear, it couldnt get its head out, so it started freaking out jerking its head around and literally tore the girl apart, killing her instantly.
^ And thats why i am extremely grateful for what happened!