I agree, it's tough on everyone right now, and I'm guessing that part of the CMs training had to do with looking for signs that someone is "adding on" in order to try to get a
DAS when first told no.
Twende, not saying at all that this is what you did - you're in a spot where some of your needs can be met without a DAS (no steps, low light vision problems) and some need a DAS (waiting outside of the line so that you can use the restroom before you return to ride).
I know it's a pain, but before your next trip, I would recommend writing down what your needs are, and separating them into "DAS required" and "no DAS required", and then when you get to GS, bring up the "DAS required" needs first. That way (and again, I'm not implying that you are trying to game the system), it doesn't appear that when being told you don't need a DAS for no stairs and low vision, it doesn't look like you suddenly thought of something that would require a DAS.
Just a thought, and best of luck on your next trip.