Cupcake/Sweet Treat Delivery in Triangle Area?
You may want to get bakery recommendations and then find a concierge service to pick/up and deliver.
There may be one of those companies that deliver meals from various restaurants in CH/Durham - perhaps they could be persuaded to do this.
Sorry I don't have more specific information to help you.
Favorite area bakeries are Sugarland in Chapel Hill (http://sugarlandchapelhill.com/), Sweet Memories in Apex (http://sweetmemoriesbakery.com/), and Edible Art Bakery in Raleigh (http://www.edibleartbakery.com/). Edible Art does list delivery for special occasion cakes on their site, but you'll need to call the other two to see if they also offer this service.