I actually did that in NJ recently. No I didn't flip the bird
I made a left hand turn right into the oncoming lane of traffic and never saw the divider. It was late at night, I was tired, and I was trying to listen to my GPS. Luckily no one was coming and I did a quick "U-ie" and got going the right way!
As far as the truck driver; people are in their own little world and you probably just surprised them.