I just got home last night. I never had an issue with bags on the wheelchair. Note that I do have DS walk onto the bus, and fold up the chair. They never said anything about removing the bags first. (They did not prevent the chair from being folded to as narrow as it could possibly be.)
Question about the comment above about the lines changing: I did notice the absence of a queue area for wheelchairs at some parks, and was flat out confused. Most of the time we were there at slow times(less than 10 or 15 people waiting to board), so it wasn't an issue. But one time we happened to walk up just as a supervisor was walking by. I started to get in line, but he directed me to the "normal" W/C waiting area (even though it wasn't really there).
Anyway - so do they now officially want us to wait in line, then have to wait
for another bus if there is no room for W/C by the time we get to front of line? I'm OK waiting for a second bus if there was more than a full bus load already waiting when we arrive, but I don't think I'd be OK with it if there was
space left when we got to the front, but then we couldn't board b/c there was no space to manuever the W/C on.