When ordering something online click the option in store instead of ship to your address once you do you will get email when its ready to go to the store you choose and then you go to the service desk with you photo id and tell them you got an email that your order is ready make sure it says ready for pick up sometimes ordering online will give you in store pick up option but say 3-5 days which means it has to be shipped from the warehouse
The Netfix app yes but you will need wireless internet and you will need to sign up to use the Netflix service. The first 30 days are free but then there is a cost. You will read more when you go to the app.
My dad has a 2010 Kia Forte with HomeLink, and the garage door opener that came with our house back in 2005 was compatible with it. I don't think the garage door opener matters. Did you follow the correct steps in your car manual?