Yes, that's just about possible provided you don't put it in too far and have room to lever it across.
That method "ought" to lift the latch free.

Given the size of the gap you might need 2 small flat screwdrivers: the tip of one on the cable side of the slot to provide the fulcrum and a second one inserted a bit further as the lever. I vaguely recall doing that on one attempt that worked.