Don't worry about it. You were right. So don't feel bad. My daughter refused to walk her dog on a leash, and plenty of her neighbors yelled at her, even though her dog was just friendly and not at all aggressive. Less than a month after moving into the neighborhood with her dog, her dog was killed by a car. It's been a year, and she's still not over it. Walking a dog on a leash is good for everyone. You were doing that woman a favor, whether she knows it or not.