I've bought three Extreme tool boxes, all were delivered to our business location. All were opened and inspected before signing, driver did not say a word.
We receive electrical enclosures by the dozens each month that are as large or larger than toolboxes, about 80% are delivered by FedEx Freight. We open (unwrap) and inspect each one, it takes about 3 minutes. It should not take you more than 3-5 minutes to unbox and inspect your tool boxes. The driver won't care a bit about it. They expect you to inspect an item like that. We reject maybe three shipments a month for damage, in our case we can't complete a project with damaged goods. The hit to me is more than an inconvenience, it's bottom line dollars.
You will probably find that the driver will be excited for you to have a cool new toolbox - he would like one too I bet. Strike up a conversation and tell him where you got it from. Tell him you found strictlytoolboxes.com on Garage Journal on the web. You might just create a new member here.
You are worrying about something that is handled everyday between trucking firms and manufacturers/distributors. No one is trying to pull the wool over your eyes.
If your location was in your profile, perhaps someone on GJ would offer to receive it at their business location close to you. They could receive and inspect it for you with no hassle (or extra cost) on your part.