JMO...if you do/did it once, I'd just let it go. Natural curiosity. My T has a man-made pond in her back yard, a small garden one with big fish in it, and talks about her gardening sometimes. For that reason, I would love to see what it looks like. Natural curiosity. But even if I knew exactly where T lives, I most likely wouldn't see her back yard anyway from the road.

If you think this is something you'd do again, I'd probably tell her. Because it may need to be processed. Otherwise, I wouldn't. You drove by once. Just leave it at that. You now have a visual of where your T lives. I've not looked, but quite sure my T wouldn't be listed in the phone book. So...if you think this may be a continuous thing, I'd tell him/her, because that could somewhat be stalking. If you did it once and don't plan on doing it again (and it sounds like you feel shameful for doing it the one time), I'd just try to let it go. If I were a T, knowing clients were driving by my house, I would be uncomfortable with it. It could cause an issue in your relationship with your T. I'd just let it go. Unless you can't help yourself and continue to do it, or have the desire to. JMO...