I fill up with fuel where the county deputy sheriffs fill up for fuel. It's close to my place and is a private fuel station for businesses. I have talked with 3 different deputies in the last 2 months and they all say the same thing that people are getting worse. Not only in their driving but other aspects of behavior as well. They said they see it everyday.
I avoid the interstates, but if I need to be on one I stay in the slow lane and go the 5 over. I slow down to let the mergers go in front and yes a lot of them are really annoyingly slow, act like it not deliberate. I just let them in front just to see how bad they can be. It's funny.
Remember to not let them annoy you, people are letting bad behavior get a strong foothold in themselves. I see it everyday too.