I hope your mouthpiece was not too valuable.
Although discoloration of HR does NOT damage playability, tone, or any physical qualities, it makes it look rather ugly and unattractive.
We all learn the hard way. I am saddened, but also happy that you have learned your lesson. I learned it HARD with that lovely Silver Throat and am extremely careful when bringing HR near any alcohol these days.
School of Hard Knocks!