After the tape is secure along the top, the plastic sheet is unfolded and tucked so it SHOULD stay between the glass and the operating rods. The driver's side has to stay clear of the defrost wiring (if installed).
The tape is stuck to the "inner top reinforcement" in this photo:
I don't expect it to be very difficult to push the plastic out of the way for t/g service, but time will tell. If it has to come out, it's cheap, and quick to replace.
