Will I be ticketed by passing a flashing light school bus

So this morning, I was driving on a four lines road within speed limits of course. I was behind a school bus when it's moving. Then I kept driving about the time when it flashes yellow lights I was slightly behind it but my car's head aligned with the rear of the school bus. I was very confused that not sure should stop right now or going pass it because the stop sign arm was not extended yet. So I slowed down about 15mph but didn't get a full stop when the light flashing. However, when I was right next to it, my car's head aligns with its head and slight in front of it, the arms were extending or extended, I'm not 100% sure. I know I need to stop for stop arms but I has passed it. But but but, it was red lights on a crossroads, so I still stopped. There was no officers there and I didn't get pulled over. But I got honked by the school bus, in this case, will I be fined later? FYI, I am in Tennessee and I just moved here from Florida few weeks ago, so I'm not totally familiar with the road situations. My plate, license and registration are still in Florida. I am so worried and regretting my decision at that time. I really didn't mean to violate any rules, and I am always 100% being cautious when driving.

Please help me, if you have any ideas about this situation, thank you so so much for helping.