At 53 years of age, I finally learned how to prevent ruining my new scopes.....including how to avoid scratching them or marring them.
I bought a lapping bar, lapping compound, and alignment bars. I would bet you that this is foreign to 7 out of 8 people who would simply lock a new scope onto new rings.
Better late then never I suppose!
But, I think once the damage is done, all you can do is try to touch it up with some half-assed markers.