I noticed that some storage items are fully implemented, like the small and large backpacks (for obvious reasons). I also noticed certain tool belts and other backpacks are partially implemented, I reasoned this to be regarding their survival equipment property. Thirdly, I saw that lockers and safes are partially implemented as well, because they haven't been made lockable yet.
So my question is, why is the trunk partially implemented? It doesn't seem to have any survival equipment properties, so will it too be made lockable, or does it have a special purpose not mentioned in the rules?