There' s no need for it. When you get an all wheel alignment, the sheet tells you what you were at before as well as what you are at afterwards. I'll be the one to test the feel of my alignment. There is no excuse for a shop to go driving in your car without previous authorization. Even if it was just to verify, I'd say no thanks and just test it myself. I'd tell him I'll be right back and let him know how it feels. If he has an issue with that then he can ride with me.