How to break open the trunk-lock?

the key likely goes it's normal 1/4ish turn, and back, with no resistance,, meaning it's triggered the release,, but the latch can't move, because of the pressure on it.
ie.. Try pushing REALLY hard on your front door, and try to turn the knob, the knob likely will be very difficult to turn,, till you stop pushing on the door,, the trunk latch needs the pressure taken off it.... now don't go falling on your face.. lol