im sure the salt spray will dissolve the glue on the carpet. road salt is powerful enough to un glue the asbestos floor tiles in my shop. as far as it holding the salt against the car the grey snow/ice (road slush) does that, plus our cars feature marine carpet in the rear wheel wells held in place by plastic pins.
on the exterior of the car maybe a product like lizard skin would be more appropriate but at $160 for 2 gallons....
2008 Vista Blue SES Coupe 5spd FRPP Zx3B Suspension
5000K D2S Retrofit
130,000+ miles and still on factory brakes and clutch!
Rep Points dont add themselves