FYI I disassembled the car and the paint was fine under everything but the spoiler. When I took the spoiler up it had little blisters in... I popped them and it seemed like air underneath? I'm thinking that I just put the spoiler on way too soon and maybe the last coat of paint wasn't fully cured yet. Either way no rust or anything.

Wet-sanding 400 grit the entire car takes forever! I had so much peel the last time.