Reads like a few incidents I've had. Here are my experiences.
One, on Latuda, I woke up confused as I had been for days, and at some point after, I drove a very long distance, got out of my car and walked another long distance and got lost. I had no idea where I was or what I'd done to get there. But, I had a receipt for coffee. I got back to where the receipt was from and there sat my car, with the keys in the rear door. Yikes!
Another time, I was on a pain med, and drove 30 miles away from my destination, had no idea how I got there, and did not have the wherewithal to figure it out, until I got a phone call that kind of snapped me out of it and I freaked out because I realized what had to have happened.
On another psych meds cocktail that was wrong for me entirely, I walked almost 17 miles round trip and didn't figure it out until the next day, when the person I apparently walked to see called to tell me they found my wallet in their couch cushions while cleaning.
I've had other confused times on meds too, and a few off meds times, like that second week of psychosis on mania with no sleep, or the depressive episodes where my body and mind do completely separate things and I know nothing of it, like a blackout, but without drugs or alcohol. Haven't had either of those in years.
When under heavy stress, I sometimes, but rarely, sleepwalk. Waking up outside in my undies in sub-freezing temps is a whole new thing to contend with.