Pickup cuts in front of me to get to exit ramp, brakes

This is a bad situation if you aren't paying 100% attention!
The pickup waits until the last minute to cross over to the exit ramp from the far left lane, braking all the time.
Get a dash cam to protect yourself!   Idiots like this person will lie, and it's hard to explain a rear end accident if you don't have video evidence.
Video from an Ausdom A261 dash cam, provided by GearBest.com