I never heard that story, it seems pretty interesting. Do you know where I could read more about it?
The P-51 pilot is mentioned in Wikipedia under “Japanese Surrender”.
In that same cite I learned that the Japs were slow to respond even after both bombs were dropped. So the B-29s were sent back in and pasted Japan in the largest B-29 raids of the war, with conventional bombs.
Nagasaki was bombed on 9 August. It wasn’t until the 15th that Hirohito went on the air and said “uncle”.