All done. Had a tough time getting something down in there to fish out the screen. Tried heating and bending an existing hook tool to make the radius small enough to fit, but couldn't get it to hook and then dropped the tool into the black hole oblivion near the firewall.
Then I was using a small shop mirror to look around back there to find the hook tool. Never did find it, but THEN I pushed the handle of the mirror down into the orifice and the vinyl grip did the trick. It fit into the screen, jammed into it, and pulled the screen out. Sassy!