IMHO it’s unlikely they’ll be parked under cover. They probably have the protective transport film on the bonnet, roof and tailgate though to protect against environmental fallout and bird poo.Makes you wonder where all these semi built cars are being stored?!
Not like the size issue of continuous production of 737 Max's had for Boeing when grounded, but are our cars under cover, parked in fields or what?
I dare say that with the number of part built cars involved, Seat - and other car manufacturers - may be leasing additional parking facilities to store these vehicles until such time that supplies of semiconductors come through so they can complete the builds and get them transported onto their final destinations.