I came across this solution today, and gave it a try on I70 in Western Kansas with a strong cross wind. Pulled over at a rest stop and did this, works like a champ!
It's called "brute force body work" and works like a charm.
1. Roll down window.
2. Open door.
3. Sitting sideways in the seat (facing the door), put your knee in the lower part of the door below the door handle area so you have leverage when grabbing the top of the door and pulling into bend it in a little.
4. Grab the top of the door (again, make sure the window is rolled down) and pull it in a little to try to bend it in to seal better when the door is closed.
5. Close the door when you are finished, roll up window, take for a test drive and see if that fixed it.
6. If not, repeat the procedure again to bring the top in a little more.