I don't think I'm spoiling anything by saying the keycard from the hole in the wall does indeed work on the display case, as you all expected.
For the record, however:
Smashing open the case would have sprung a lethal security system.
Yes, it would have killed Tom.
Luckily a few smarter posters got the tool idea in first, but if they hadn't, I was ready to have him die.
