If this is the case, does the person offer this to you when you valet or are you supposed to ask? We have valet parked before (at Disney) and were never offered free valet (our hangtag is always in the window), usually it's just been charged on the hotel bill and we've never known that it was complimentary.
Before our trip I saw someone else mention that valet would be complimentary and then I also saw someone say that might just be at the Swan & Dolphin only. So I'm confused on if it's something that is wide spread or not and if it's offered to you or something you must inquire about.
At the price of valet parking, we don't normally take advantage of it in disney world because it can add up quickly especially on a long trip, however sometimes I think it might just be worth the price and I know for next time we go to WDW we will be prepared to pay the valet charges if necessary since parking can be so crazy.
Thanks for the info though!