Pitch your yeast at your buddies house man, the last time i brewed was at a buddies house. Pitched the yeast and put it in my car. The only problem I had was, i use glass carboys. They are heavy, so use a plastic bucket for your primary. It makes it easier to get in and out of a car. The one thing going for me was, i had a child car seat in my car so i put the car boy on top of it which made it stable.
Why do you have this concern?
If you wait to pitch it you give bacteria time to f-up your brew. Thats part of the reason why you want a pitch healthy yeast, cool your wort fast, and add o2 to your wort so your yeast take off as fast as possible.