Thanks
@BigHornBuds and
@NoWaistedSpace--and others--for all the helpful info
I think I am going to try to save what I can. The signs of bud rot are only on the top cola's so far. Hopefully I didn't spread it too much inspecting. I noticed the tell-tale brown leaves sticking out from the big cola's and when I bent them apart could see the fuzzy grey mold inside. I checked 3 that way and didn't touch the mold or any dead material so hopefully it didn't spread much at the time.
The infected Cookie Wreck is right next to a Dream Catcher with no signs of bud rot (so far!) so I think the plan is to chop the entire plant, and move it to a different area of the yard to remove the infected material and trim the stuff that still looks healthy. Then I will bring the good buds inside and give it a wash with a 3-part hydrogen peroxide/lemon juice&baking soda/water. Hopefully that will kill any spores that have not yet shown on the plant.
It sucks because in one day it changed from feeling like I had more than enough weed to smoke to wondering if there is enough to last until the next indoor harvest.