I don't think it is silly to have a whole thread about this stuff! Yum! I just got back from a trip and brought a few packages home with me in hopes of using the info off of it to find it locally. Well bad news is its a food service only item. It is made by Kens Foodservice. Go to this page and choose "Honey Mustards" then hit "Go". The sauce we all love is item #1263.
http://www.kensfoodservice.com/product.cfm
Update: I just called Kens Foodservice to ask about the product and if there was any way to get it. I was told
it is made exclusively for Disney and is not available anywhere else 
. The person I spoke with also said none of their other products are similar. I guess I need to start planning my next trip back to Disney to get another "fix".
If anyone wants to try to duplicate the recipe here are the list of ingredients off the package.
Ingredients: Water, Sugar, Soybean Oil, Honey, Dijon Mustard (Water, Mustard Seed, Distilled Vinegar, Salt, White Wine, Citric Acid, Tartaric Acid, Spices), Distilled Vinegar, Contains less than 2% of: Egg Yolk, Salt, Sour Cream Solids (Milk), Xantham Gum, Propylene Glycol Alginate, Onion, Natural Flavor, Sorbic Acid and Calcium Disodium EDTA as Preservatives, Spice.
Hmmm...after reading the ingredients maybe we shouldn't be eating this stuff

. If anyone comes up with a home made version that is close please post it.