Don't offer her the pickup or any help. That sh#t is on her. If you really feel that she has a right to use the pickup, I suppose you can let her use if she asks, but definitely don't offer.
I'm confused, she wants to move out of the house while your children are asleep in it? How the h#ll would that work?
Listen to the advice above and get out of the house that day. You don't want to be around. Go GAL or take the kids out somewhere fun.
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019