If we think long and hard about this, I'm sure we can find a good use for something in that list. I'll chew on the matter a bit, mull it over, and once we've whetted it properly, I imagine it won't be quite as tough.
Note that you're being paid to deliver all of it, and are legally responsible for all of it arriving. Signs of tampering, missing supplies, or other such incidents would tend to be viewed dimly - Although intended use, such as saving lives, saving your employer's lives, or making sure the shipment arrives at all, are common examples of large legal leeway.
Although not all of you may necessarily know that, but there's a lot of common social, (and legal where such a system exists) exemptions for exceptional circumstances.
For example, going into a tomb with the intent of prying magic swords and coinage from the cold, dead hands of someone's ancestors is grave-robbing, and is viewed appropriately. Going into a tomb filled with undead and prying their equipment and coins from their re-inhumed hands is considered just recompense for your effort, and also a reminder to any extend descendants to not let a grave fall into such disrepair and unhallowed state that undead can arise.
And, of course, if no living descendents are known, or you have a charter from said descendents, retrieving items from ancient ruins is entirely within most social and legal bounds.
If that is too long to read, simply, yes, you are responsible for the shipment, but using it to save innocent lives, especially your employers, means that even if your employer were inclined to bring suit, no judge in Neverwinter would be inclined to hear the case, and there's a decent chance they'd order you be paid extra for going to extra effort and risk.
And your employer does not seem like an idiot, a cheapskate, or a lunatic. So sure, if it's something you think will help with this problem, crack open those crates.
Just remember it's not a looting expedition.
Edit: Also, you don't definitively know if your employer is in trouble.
Spoilers. Nothing to see here. Keep OOC, OOC.
