Fallout 1 - Necropolis - the fridge remains locked...

I completed Set's quest and he told me to follow Garret to get my reward. Garret goes into a room and fiddles with a fridge, then goes away, but when I try to open it, it remains locked and I cannot break into it. Garret then ignores me and Set does not have any dialogue about this. Is this a bug? Playing the GOG version + Fixt.