I didn't worry though; perhaps the game simply forgot to take away the shot when I previously used it. So I decided to wait 24 hours. Nothing. I waited another 24 hours. Nothing. And I tried one last time, and still nothing. I decided to give up and see if maybe it'd just replenish shortly later, but after about two [real, not game time] hours, it STILL won't function.
I know the easiest solution is to open a previous save file, but my last save was at the time that I activated Archimedes II and I've completed several quests, which I'd rather not have to do all over again.
Is there any other possible way to get the Archimedes II laser working again?