Ordering pizza while I’m home alone..

I’m home alone right now and my parents will be gone for a few hours. They’re very over protective and get mad if I answer the door for anyone while they’re gone(which I completely understand, I don’t want to anyway, you never know if it’s a crazy knocking). I have some money and want to order pizza but the thing is I don’t want to answer the door because when they get home and see pizza they’ll get mad I answered the door(this one might sound a bit ridiculous because it’s a pizza guy, but I also understand because that pizza guy can be a creep as well, see a young girl answering the door and barge his way in. You never know, definitely not taking any chances because with my luck he will be a creep, I tend to attract these kinds of people for some reason.. obviously my parents have made me very paranoid as well🤷🏽‍♀️) anyway my question is would it be weird to have the guy just leave it at the door on a mini table thing, and leave the money and tip on the table as well.