I was at work locating underground Gas pipe and Electrical lines on a major roadway. My standard method was to locate what I could from an access point and then move down the street little by little to complete a job, or at least stay ahead of the construction and repair crews. To do this I'd often be in and out of the truck every couple of minutes, if I wasn't going to be far from it id just leave it running. This was my last job of the day, and the last section of it that id be doing was going to be quick. I parked along the side of the road blocking someones driveway. I really thought that i'd be done in 2 minutes, and I was, with the job, not my time on the side of the road. The craziest thing happened when I lifted the door handle on the Ford Ranger ( work truck ) it somehow locked the door instead of opening it. I watched the lock go down next to the window as I pulled the handle, it was a legitimate WTF moment, and I was locked out of the still running truck with no cell phone, no radio, and no spare key. I had learned to jimmy my way into a Chrysler product pretty easily but Fords were almost impossible for me to get into. I scrounged the the gear in the back of the truck while I considered breaking the window, there was nothing that I thought would be useful other than the utility flags that we used to mark the paint lines. I was fortunate enough to have some of the old style with the thin metal stems instead of the plastic ones. I bent the flag into a makeshift slimjim and jammed it in between the window and door skin. I could feel the flag unbending and knew that it wouldn't be strong enough to work but when I tried to pull the flag out of the door it got stuck on something. I yanked that flag out and it somehow unlocked the door, another total WTF moment- but much happier. I was never able to duplicate that one when other crew members locked themselves out but I did learn that I could get into any Ford or Mazda with a thin screwdriver by inserting it into the small hole that the handle hinge has, nearest the lock, and pushing up and away from the door hinge side of the door. After that I was the guy that the boss called when this happened to other employees.