So... I've been drilling on the lock... haven't had a whole lot of luck yet. Here is the same lock, removed from the coin door (luckily the coin door was open, so I could get it off):

If you can see, it has a little metal tab that sticks up through the housing:

If I push on the tab so that it goes all the way in, the front face of the lock pops out (it's spring loaded) and I can turn the handle.
I've drilled enough of the lock to reach the arm that the tab is on, I can pull it down, but the face isn't popping out yet. I'm thinking maybe I'm just not able to pull it all the way down, and maybe some more drilling will fix that.
Anyone else played with this type of lock?
Here is the manufacturer:
