Camping with Dogs

I want to take my Yorkies with me when I go camping. We are staying at a campground in a camper. The only problem is my Yorkies are SO yappy and loud! Also wondering if we have to leave the camper to go to the store, etc. if I would be able to just leave my dogs in the camper? I know they will constantly bark while I'm gone. I don't want to disturb others but I don't know any way around this. Do any of you use shock collars :-( on your Yorkies to control barking? I really don't want to go this route but I want them to be able to go with me. How about hotels that are pet friendly. How does that work exactly? If you leave the room to go out, are you able to leave your dog in the room? Again, mine would constantly bark very loudly the whole time I was gone so that is why I never tried it. Also, I guess I would just be paranoid that my dogs may get stolen.