I have "beat" the standard story and now i am doing all the "extra" stuff. I want to get back into the GCPD so i can tell Freeze about his wife. I can't seem to get in anymore. I use the electric zapper-thingy to open the door down in the garage (i guess that's what that is) as i did during the story. Now when i go in and turn right, the door is frozen shut and nothing i can do will open it. Is there another entrance (i've looked all over...i think)? Do i destroy the ice on the door somehow?
Thanks for any help!