For parks, the Hospitality House bus stop, is final stop before departing the resort, closest to 11-14. Returning from the parks, it is the final stop. For your room location, you could get off at stop #1 (Peninsular Rd. at building 26) and walk back over the bridge to the Hospitality House & your room area, well before that bus even gets close to getting there from the other stops.
Can also use that Peninsular Rd. stop to get on an empty bus. Sometimes by the time it gets to the Hospitality House stop, it can be full, with just standing room. (You would be riding to each stop, throughout the resort, but will have a seat).