Disney will never leave a guest stranded in a park!
We came out of RFC at AK about 90 min. past AK closing this spring. They had a dispatcher there asking what resort we were going to. They had 2 busses there that they filled according to where you were staying. We waited about 10 min. for them to fill the bus, then the ride was almost an hour - it stopped at about 6-7 resorts, and as luck would have it, ours was dead last! So be prepared that it could be a lengthy ride. You can always take a cab if getting back quickly is important to you.