Is it rude for an adult to yell at an autistic kid when they’re doing something horrible? (Please read and answer)

My sister yelled at me for bitting her and she shouldn’t have done that because I’m autistic and “special needs”. She was wrong. Just hear me out. I was like 7 or 8. Warning long rant.

One time my dad took me to my sister and brother-in-law’s old apartment (where they used to live before my nephew was born) so they can watch me so dad can do errands. I was on punishment. My dad looked me in the eye seriously and told me just because I’m at their house doesn’t mean I am off punishment and I still need to listen to them and they’re the adults. My dad told my sister and brother-in-law that I was not allowed to have fun things I have any sweets because I was punished for what I did at school. My brother in law had to work that Saturday so it was just my sister and I. My sister was disappointed because she wanted to take me to a movie but after what she heard, she didn’t take me and gave the movie tickets to her neighbor and her grandson. I screamed to get her to get the tickets back and she firmly said no. I started to hit her hard and grab her hair but she stopped me held my arms and scolded, “NO!! You will not do that to me! You don’t always get what you want!”
Then I tried to but her but she got all spicy and said, “Don’t you dare try to bite me! No!” I’m autistic and she shouldn’t have yelled at me. She snitched on dad and I bit her hard. She was furious and scolded at me for my ugly behavior and when dad picked me up, he was furious! My sister did not want me back at her place for a while until I learn how to behave right. Can’t believe my own big sister would do that to me. I did apologize to her. My dad made me. She had to go to urgent care. I was only 7-8, but already taller than my sister.