I ignore stupid people. I have even had people yell at me for using handicapped parking spaces while i was getting out my wheelchair!! because I was "too young" to be disabled. Yes, I have a $5000 wheelchair which I had to pay for out of pocket (stupid insurance) because I want better parking. It's also a fashion accessory. Does it make my butt look fat?
There are lots of people who just don't get it.
My favorite with these type people are the ones that say I "conned" my doctor into giving me one or I am using someone else's. One lady verbally harassed me and my children while she was sitting in the van waiting for her family to come back (she was the disabled one) and my daughters were upset. I finally turned to her and told her she needed to shut up because she did not know mine or anyone else's medical situation.
OP, I am sorry that someone felt the need to yell that out to you. Some people just have no clue what it is like to have a disABILITY. I have dealt with it at different parks (even one where I had waited the same amount of time they did to ride the ride but was able to wait elsewhere rather than standing for that whole time) but not at Disney (yet). Too many people think they are above those with special needs and sadly, until they are in our situations they may never really understand that many of us would willingly trade places and wait in line just to be out of pain or able to walk or cancer free, etc.