Burnt Orchid in Hot Water!! Help!

[Kaity]

So i read that you were not supposed to water with cold water but with room temperture. Some how my facet went from warm to TOO WARM when I was filling a bath so water my mounted orchid on and it BURNT the ends of about 1/3 of the roots and one leaf. The roots are shriveled were burnt and brown. The one leaf is brown but still moist. What should I do? Leave it alone? Cut off the burnt part? I'm a total novice...obviously....so any help would be great!