I just saw a white Mustang like yours yesterday. Looked like the owner smeared a concrete wall on the passenger side. Either way, that could be an option, as his side scoop looked like it came off fairly easily that way. :p
'11 GT Kona Blue Brembo
"Measure with micrometers, mark with a scribe, chop with an axe"
"I'm not new to driving. I've been doing it for a couple of years now." - Aphex