Autism acceptance month.
Reminder that me wearing my noise cancelling headphones around and behind my ears in case there is a loud noise is not a privilege!
Don't be the coworker who bullied your autistic coworker because you think they're getting away with something. They're likely just like me and know how to cope with their surroundings that aren't made to accommodate people like them.
I work in an escape room and when people get out they can be really loud. Loud noises overwhelm me. Easier to just slide my headphones over my ears and continue doing my job than to break out into hysteria because the sound made it so I can feel my body being set on fire and suddenly the fabric of my shirt is made of needles.
Accept that your autistic coworker isn't getting away with anything.