Cump,
I hate to say this but I really don't know much about those situations. I based my opinion of 10% on what I was paid when I was working. I can recall many pay checks where my deductions were nearly as much as I was taking home -- I was paying out as more than most other people were taking home. That being the case you can see how 10% would look mighty good to me.
I am sure after the war started they had to have some sort of paperwork to travel, I was referring mostly to the beginning of the Confederate government.
Like I said something I know little or nothing about, my apologies for being so uneducated about the subject.
GP