Either that or she was rude/evil/ignorant/mindless while blabbing on her phone drinking her latte.
Honestly, I wish they'd make cell phones completely illegal to use while operating a motor vehicle. People are over confident in their ability to focus on driving while talking on the phone. They think that because their eyes are free, their mind is free.
I used to have an hour long highway commute and I saw this every day on my commute. I guess people don't like wasting an hour, so they'd talk on the phone.
And I can almost hear their logic: It's basically just driving in a straight line at a constant speed, so no problem, right?
Three problems that they have:
1. Driving in a straight line.
2. Maintaining a constant speed.
3. Situational awareness for lane changes.
But since their mind is 80% occupied by the phone, they don't realize that they fail at all three!
And I can hear them argue, "I've never been in an accident while talking on the phone!"
There are two reasons for this:
1. Your fellow motorists think you're drunk and/or insane and drive defensively around you, to the best of their abilities.
2. You are, in fact, oblivious, to the near-misses you've had, up to and including, running people off the road while mindlessly changing lanes.