Was steven seagal ever in the secret service or did he ever guard the president?
no he was only in the c.i.a before becoming an actor
Has a president ever declined secret service protection?
Has any secret service agent ever refused to serve a president?
Yes he did. On a number of occasions---both as Vice-President and later as CinC. Hear tell he would play duets with his USMC Honor Guard, but need to confirm that.
Who was the secret service guard who died protecting president Coolidge?
Never made by S&W and never used by the Secret Service.