Follow Up
I finally got around to pulling the overlay tape off my UHaul decals today. A gentle heat gun application and careful pulling did the job easily.
I don't know if Rec Vee World is associated with UHaul or if these decals were added by someone else.
The rear UHaul lettering (white block letters) was pulled off rather than covered. I may have some made at a sign shop.
Before and after pics.