OK... I drove it to my office, from my office to a meeting and then back to my office with no problems. Driving home from my office is when it started again.
I think it has something to do with the auto transmission.... It almost feels like it is prematurely switching to a higher gear (no power at low speeds) and then switching back to a lower gear (causing the car to buck and shake.) It didn't get to the point of not being able to move this time because I pulled over and restarted it once I felt it happening. Even then it still felt wrong.
There is definitely something wrong.... I'm bringing it in first thing tomorrow for service. Is there a grace period where you can return the car for a full refund? Anyone have any experience with this?