Why is using a computer to solve a captcha stealing. The websites posed you a challenge, you solved it. Maybe the website _expected_ you to waste human time on it, but that's not what you did.
A CAPTCHA is there specifically to stop machines, allow humans.
You're allowed in, your bot isn't.
It does make it (depending on jurisdiction) trespass to enter with a dog, unless there is some mitigation e.g. guide dog.