I'd guess the customs release etc is just the electronic process.
Maybe they really did go trough customs over the weekend (which would be great)
I highly doubt they'll be trucked to the VPC in NJ as it's still closed and unclear when/how they will open
Also the VPC/VDC in Baltimore (operated by MB USA ) should likely be able to take care of the cars.
I'd also assume any damage report etc would travel electronically with the car (but I'm in IT so likely make a lot of assumptions )