ART (Anaheim Rapid Transit) might be a good alternative for you. I'd check their web site for schedules, routes and fares. The first third of the walk is sidewalks and hotels/restaurants etc, however once you pass under Highway 5 you move into a more industrial type neighborhood with a couple of 'Gentlemens Clubs' for the next third of the walk. The final segment is a pretty good little hike (about 1-2 miles) from the street to Staduim Entry.
What you might also consider is an Enterprise Rental Car. They will pick you up at your hotel and a full day rental is about $20. You could visit the Disney Outlet store, run over to Buena Vista (Knotts, Medivel Times, etc), run over to the beach or just make a grocery run with the rest of the day.