Not sure why no one is labling the boxes with the words "Live harmless reptile" but I would think that would solve some of the handling issues. Just having "Perishable" on the box would make even me think it was just a food product or something. The admittidly one time I have had animals shipped was through fed-ex, and those words made the driver take extra care with the package. He kept it in the cab where the heat was and even asks if he could come in for a minute to watch me unbox what I had.
Now, I'm not excusing the way some of these guys behave, but as someone who has worked in the shipping industry, I can tell you these guys are kept extremely busy, sometimes to the point that I see them literally running in and out of their stops. If they don't have a clear idea that they are hauling a live animal, they will not spare a second for extra effort for that package. They simply aren't given the time. I firmly believe that most of these people would treat our critters with respect if they know what they are dealing with. Of course I also acknowledge that some will just be jerks anyway. Thats what happens when dealing with people.