Brillo pad on car paint is just so wrong...

My wife put me on the angry meter today when one of
the kids got car sick. Anyway, she cam pulling up and
I just waxed the car like 3 days ago. And to my shock
there was this sticky white crap all over the back of
the car. The baby blanket she used was full of barf and
she spayed it out with water at her parents house and
then laid it on the back of the car to dryout.
So I sort of freaked out and we started yelling ect ect.
And I ended up washing the car again before any of the
vomit eats away at the wax and paint.