Cargo furniture espresso

Will a razor blade scratch a car window? - razor car

I think of a joke my friend and paint with a pen on the back of a truck (because I am at work and a good 'pen car window "). I tested the pen painting on a sheet of glass. It seems that not come with water and cleaning, but ... He came with a razor blade.
And I want to know if will be a case that his truck (since new) When I suggest that you take it with a razor blade?