I've flown in the DC FRZ. I'll tell you do not fly outside your home!
The DC FRZ is the most heavily monitored airspace in the country. I can promise you that D.C Metro, the Capitol Police, and even DHS will know the absolute second you turn...
I certainly trust what Mr. Moss states. If it were me, I'd make every attempt to contact the balloon pilot to discuss my desires. They just might be over joyed and request some specific "views" that they would like to see, and you could share...