It's not a SEAL school. It's called BUD/S. He should have been very willing to give you his Class number. His vague answers are the first clue that he is not a real SEAL. The dates that you have him serving in the USN, he would probably have been only an E-4, after 3 years. I still don't see the time frame to give him thirty years in the USN. When I talked to the people at AuthentiSeal, they get so many e-mails per day about people pretending to be SEALs. It takes three guys, seven days a week to process all the fake claims.
Here is another entry for the same phone number. FWIW.
Mustaqeem-Graydon Conservatory Of Music Inc - (229) 431-1144 - 700 Pine Ave, Albany, GA 31701