Possibly not the ideal environment for a dog. But what's the alternative? Leaving the dog home alone maybe with a neighbour or relative looking in a couple of times? It's always no bad thing for your dog to experience different surroundings. And if the dog is happy in it's cage in the back of the car for a while, it doesn't have to be dragged around all the halls all the time anyway. And for sure if you camp, the dog will be ecstatic.
As for camo, well there's those that shop in Tescos in camo and practically live in it. Perhaps the likes of Deerhunter etc. should bring out camo designs for all environments. I could see bottles and cans camo for the drinks aisle in Tesco. They could call it Beerhunter.