Hello SmileToPlay,
I have reviewed the situation and i have also spoken to kyber. I have came to the conclusion that you weren't intentionally trying to be disrespectful as it didn't say 9/11 it said 911 and as you stated that could be interpreted in many ways. You also didn't mention 9/11 and you were just playing so i have decided that your ban will be reduced to 2160mins(1.5 days). This is because of bad attitude, refusal to listen to staff and having 6 recents.