No, he said, Noah and the flood were the figure of how baptism saves us.
Baptism was the "Figure", Symbol of salvation, Not Noah and the flood.
The Greek says about water baptism,
"Water baptism is an expression, of salvation, Not the medium for salvation, The symbol of salvation, Not the cause of salvation".
Peter knew water baptism doesn't save, He knew by his own experience, Because he was baptised in water, But not saved.
He told the people in Acts 2: 38, To repent for the remission of sins, THEN you can be baptised.... That's the way the Greek texts says it.