Its everyone. Agreed, that texting and driving is one of the most selfish modern decisions people can make. Look over your shoulder and it happens too often. I do wish law enforcement was more diligent about having zero tolerance for it. More so than the easier hanging fruit they go for like registration stickers and speeding.

One other problem is the lack of education and enforcement of a 1 to 1 zipper merge at pinch points. Why are you considered the bad guy by not getting over early and utilizing a lane that was designed to hold cars by engineers. Its best to fill up both lanes and then let each other in one by one. Police and CDOT signs should encourage this practice.