One thing to consider, Emily...
You can argue about cats and dogs versus herps all you want, but the bottom line is, those are accepted pets in our society.
Herps are not.
Regardless of whether this is fair, legal or whatever, you cannot change the structure of our society. If you fight it, you will lose. You will not change this lady's mind about herps, nor will many people feel empathy for the snake owners. That's just the way it is. Life isn't always fair.
I think the best you can do, is keep a low profile... and attempt to educate anyone who is willing to listen about the beauty of keeping snakes and spiders. Start with the ones willing to listen.