I just removed a fair amount of them on the front and back of my Surveyor.
I used WD-40 and a razor blade.
I tried a hair dryer to help but found it to be easier with just the WD and the blade.
I sprayed the graphic with the WD and took it off in strips. Sometimes I could hold on to the "tail" as I was taking it off, and it would help. Have a small cardboard box to throw the scraps into........ they will stick to anything if you just let them drop.
You have to take your time so you don't "nick" the surface. Any time I got in a hurry I could feel it "catch".
Once the graphic is off there will be some adhesive left. Spray again, and let it soak for a bit. Hit it with the blade again, and it will ball up on your blade. Scrape the "residue" on the edge of the box, and repeat until it's all gone.
It takes some patience, but it can be done.