After coming back to poke at the game gain, there is one situation where I think the conveyance is strange:
1) Put a box in storage.
2) Try to put a box down but there's already a box there (so it's instead put down in the past).
This is now a situation where if you don't pay off your box debt, the world ends, like the more typically used version of 'put air in storage, put a box in storage, box is in the past', but UNLIKE that version, there's no flashing box in storage to tell you what your debt is.
I can't tell if this is on purpose or not, just bringing it up in case this was overlooked during development.