Natalie, yes I have them in my garden. Alas, I know them well. I went to the mainland to launch a new book on them last Wednesday for the frog society.
It would be disastrous if they were actually in Idaho. Fingers crossed some idiot hasn't introduced them there. However, it should be too cold in your State for them to maintain viable populations.
The new book is "Cane toads: a tale of sugar, politics and flawed science" by Nigel Turvey. Their introduction and impact throughout the world is an awful story.