Passenger cars wearing "clothes" / Rail Cruise America???

So I was out in the front yard with the kids a little while ago and a passenger train went by – we usually get one a day in each direction past the house, but late night/early morning. The cars in this train were ALL completely covered up with some sort of silvery fabric. The cars which had windows had holes in the fabric covering so that the passengers could see out. There were two (I think) dome cars (that’s what they call the ones with a glass bubble kind of thing sticking out of the top, right?) and a number of other cars, and yes there were people on the train. It had a couple of signs reading “Rail Cruise America” on it, which is moderately self-explanatory.

But what I would like to know is why the cars were covered up like that? I doubt it was just that they were feeling modest…

Maybe it was a Nudist Rail Cruise America. They have nudist cruise ship trips, why not trains? lol

I highly doubt that it was a nudist rail cruise because the rail cars were covered up and nudists perfer to leave things uncovered. [swg]

I guessing it had something to do with the railroad names on the side of the car. Maybe the host railroad didn’t approve of the railroad name on the cars and asked that they be covered on some manner.

CC