> can you drive it to work and send it home by itself? And then ask it to come and get you?

No. The Tesla webpage and in-car guidance are clear on what you can expect from this feature and how the driver is expected to be paying attention. The car will also sense when you are not paying attention and take measures accordingly.

https://www.tesla.com/fsd

No, but it can drive me to work and park, come pick me up at the door after work, and drive me home