Does the Bible ever say you can get saved later at a more convenient time?
No. Scripture never teaches that salvation can be postponed to a more convenient time. In Acts, King Agrippa's request to hear Paul later is set against the truth that this is never Scripture's teaching. The Bible says today is the day of salvation for the person who has not yet entered in.
Les explains that the Bible never presents salvation as something to put off until a more convenient time. He points to the account in Acts where King Agrippa told Paul to come back another time, and says that is never the teaching of Scripture. Instead, the Scripture says today is the day of salvation for the person who has not yet entered in. Les then connects this to the ministry of reconciliation in verse 3, where Paul was careful to give no offense in anything so the ministry could not be blamed, because the devil delights to smudge a ministry, and Paul constantly had to defend his apostleship against false accusations.