There's always a wait at that place, that's why you can make an appointment on the internet the day before.
"How was I supposed to know that?" ,You scream.
Well, now you know.
If you can't get the HD replaced for free, or the HD and the case, with screaming,
then you can buy a new HD at Best Buy or something for about a hundred bucks and replace it yourself. It takes about 2 minutes. I'm not even exaggerating.
Good luck