My two Scotties are "dog friendly" only if the approach is correct. If another dog is straining at the leash and the struggling owner quips: "She just wants to make friends" I say, "Mine don't. They don't like other dogs." The truth is that if the other dogs are calm and no one is tightening up on the leash, all is well. But most dog owners in campgrounds don't seem to train their dogs at all and don't know how to greet other dogs. In one case, a dog off leash ran up to my one girl and she got nailed. She was small and had tons of hair, so mine got no skin. We were walking by on leash when this dog ran out. I'm not apologizing for that one. Another one off leash and the owner said, "It's okay, she's friendly." Much bigger dog and I said, "Well, mine aren't." So she walked over to get her dog and said, "Come on, Buddy, they're not nice dogs. They don't want to make friends." Grrrr. We told her campground rules require a leash or tether at all times and then reported her to the campground owner.
Sorry you had that experience. Glad all worked out for you, though, and you had a great weekend.
Dale