On my last trip, I called the Disney operator from my room to get a name of a cab company, since we had a 7:30 ADR at Boma for breakfast. The woman on the line told us not to book a cab - that if we got on an AK bus and let the driver know we were going for breakfast that he would drop us off at AKL after the AK stop. I would think you should be able to do this as well, with a MK bus, as long as it is not morning EMH that day.