craftgrrl | Help! Spray paint removal.

My boyfriend recently found a scooter in the garbage near his apartment (a more old-fashioned version of the new-ish fold up scooters.) It was red but I am in the midst of repainting it robins egg blue for his niece. (I'm also going paint her name on the footboard...yea!)

Anyhow--here's my problem: I was so anxious to paint that (against my better judgment) started spray painting during a rain storm and now the scooter will never dry and looks smudgy. How do I remove the spray paint I've already sprayed? Does anyone have any prep tips for when I attempt this craft in dry weather?

Spanks in advance.