Thanks, guys.
Yes, I've heard about the military, and government agencies (think FBI, CIA, etc...) that now frown on "identifying marks". They are allowed, but yeah, they will give you a hard time about it, and I do not doubt the paperwork involved.
It's snowed a ton in Detroit since we left. And ice storms. I may have to see snow. We're planning to fly back to Michigan to get the rest of our belongings and drive them down in a U-Haul, as well as bring the Buick down.