Well, I must say, I haven't had a problem with bus drivers as of late. I walk with a cane (due to bad knees) and I find that most bus drivers are quite accomodating and are not rude in the least.
Randle, did you complain? Write a letter to the company? I understand that it is a 'he said, she said' sort of scenerio, but it wouldn't have hurt to try anyways.