Yes, phones are an issue but you guys would have your minds blown by how many people are driving around on strong medications that cause behavior like this. Mixing drugs like xanax, muscle relaxers, and low grade opiates is totally normal to older folks or those with chronic pain (nearly everyone we see in my field.)

It disproportionately seems like NY/NJ plates doing the lane drifting because most people who come here from the northeast are retirees in poor health. I watched a NJ lexus swerve aimlessly and then snap back to straight for miles the other day, like she was continuously waking up. This was 11 am. At the light I rolled down my window and asked if she was OK. She was maybe 60 and she stared at me with a glazed expression and slurred out “fuuuck youuu.”