This is a very good question. I also asked this the other day because we are going to AK one day but having dinner at the MK. I would not have thought about this but instead for going back to the Pop where we are staying someone told me to either get a bus to the GF, Polynesian, or the Contep. resorts. Each of these are on the monerail system or within walking distance. That way you can get on which ever bus comes first. I thought that was a good idea and that's what we are going to try.
We leave in 2 days!!!!