The body shop was able to color sand and remove 90% The ripple or "sag" as they called it, without breaking the paint
surface. Great news since it did not require painting, and it's
not noticable unless I really study it, knowing where to look.
Interestingly, Before they worked on it, the service manager noticed wax residue left under the corner of the tail light
....I never waxed my car.
It was impossible that Factory QC had not seen this,
but more disappointing that they evidently tried to fix it,
and then let it go in that condition.
Thanks for the previous input on this, Problem Solved.