To quote Amos:-
I am sure CAA has a street address, and an evelope addressed to Mister Spektor there would be delivered to him.
In approximately 10 seconds on Google, I found:-
Type "Creative Artists Agency" into Google, get their website, look up their contact info. Doesn't take $200, doesn't take 200 *seconds* even.
Why ever would you think that you needed his agent's home address? Do you ring your accountant at home, or at his/her office...?