My daughter got one of these. The school bus was pulled over on the side of the road; not in a travel lane. The bus driver opened the door as she was passing the back of the bus and closed it before she got to the front of the bus. She got a $250 fine. I pled not guilty (because it is my car). This was last summer, and we still do not have a court date.
Plenty of these tickets are BS that most actual cops would not write. The only saving grace is there is video instead of just someone's description of what happened.