What was the design of your study? I believe it was observational. Were there repeats at different times? Did you also repeat the same time in different weeks?
I ask, because study design matters, and it affects what you can interpret. (Obviously, observational studies are all you can do for this). But I would be careful with your conclusions if it was only 1 or 2 times.
And yes, there are some cyclists that ignore rules. I don't like them because they give the vast majority of cyclists a bad reputation. For instance, I called 911 a couple of weeks back for a pedestrian that got hit when an e-bike food delivery guy ran a light at a T-intersection. (She was shaken, but ok I think)