No it's open to the public. They have a controlled atmosphere as far as checkout.
You don't! Just head straight left immediately after entering the store, and the Geek Squad counter will be straight ahead. Just so you know, they do charge you a diagnostic fee before they will look at anything (this is an addition to whatever the cost of repairs end up being)
Yep, if you go to the geek squad section, they will help you!
Thanks! Your answer is awaiting moderation.