Do you have pics of the spoiler you can show us? Maybe we might have suggestions as to what to do.
First suggestion, drive as fast as you can to dry it out. If that doesn't work go back to previous request.
13 HD FatBob
17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip
16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone)