Congrats!
There are many pieces to a car, and it's always hard to check them all during a delivery. That's OK, Tesla is pretty good about fixing things later if it turns out the car was not delivered right. The one area you might pay special attention to at delivery is cosmetic damage...because it you come back with it later, Tesla is never sure if it was delivered that way or if you added it. If the light is not good, ask if they'll move the car so you can check it out.
Other than that, you know you have a good resource here for questions. If you have questions about charging, ask them because that's important to have down right away; otherwise ask for the key and start driving it! It really is a very easy car to drive; most of the tips and tricks here are for advanced users trying to get every last bit out of it.