Thank you, really appreciate the feedback.
Thus far my maintenance wash routine is to pre-wash using Mega Foam in a foam cannon attached to my pressure washer. Sit for a bit. Rinse. Then wash with the Graphene Shampoo. I have NOT tried any of the decon steps, so I will give those a try next. I'll also use my clay mitt to make sure there's nothing left behind.
As far as prep goes, I picked the car up from the dealer without them washing it. I was there when unloaded from the truck and watched the shipping stickers removed. Paint was as fresh as I could get it. Took her home and did the full process of strip wash, clay mitt, iron remover, mega foam wash, machine polished with the finishing polish & pad (not sure was needed but did so anyway), alcohol wipe down entire car and then another alcohol wipe down before applying to each panel. So I believe I did everything necessary. Oh, each rinse was with deionized water and used a leaf blower to dry.
So I will do another wash. I believe I have strip wash left over. I'll use the clay mitt as well and see what happens. With luck this was oversight on my part and I just have crap still embedded. Unfortunately I live outside Chicago so when I washed it last in October the coating was fantastic! But then she wasn't washed again till May so 5-6 months of accumulating crud. Plus in spring our vehicles are coated in lovely pollen.
Thank you again!