Hi Corrina,
Whilst this would be super convenient, it is not currently possible to have Special Event tickets added to your Vacation Package for collection upon check-in at your Disney Resort hotel.
You are able to purchase Special Events tickets ahead of time from the Walt Disney World website
HERE.
The available delivery options are as follows:-
Will Call - You (the Credit Card Holder) may pick up your tickets starting the day that they are purchased
at any ticket sales location at a Walt Disney World® Theme Park.
U.S.Domestic - standard - For $5.00 your tickets can be shipped via the United States Postal Service. You should receive them within 14 days.
U.S. Domestic - express - For $15.00 your tickets will be shipped via FedEx. You should receive them within 7 days.
New! Disney eTicket - Your tickets are immediately available and can be printed on your
computer. This option is only available if all of the tickets in your
order are for a Special Event.
I hope that this information has been of help and wish you a magical trip!