I don't know if this is the best forum for the question but I need an answer pretty quick so am posting it.
I just bought a new gt convertible and the Pema Plate Package that includes fiberguard, leatherguard, soundguard and painguard for $895.

I take it back to the dealership Friday to have those things done (and a remote engine starter made)

My question is that Perma Plate package worth it or is it a scam? I live in Oklahoma so dont really need the salt protection aspect of the undercoat (soundguard). thanks for any guidance