I didn't have a mobile phone at all for 35 years so I think I could cope for a week without my iPhone.
What? Really? They still have to run diagnostic tests, and the plugging the phone in turns it on. They even activated my replacement iPhone with iTunes at the Genius Bar on their MacBook.When you bring an item in for repair, apple has no no legal right to look at your personal stuff, or even turn on your phone, etc. when you bring it in. It is perfectly safe to bring it in now.