I don't think that is the point that Peter is trying to make. The unsaved crowds are mocking the disciples and accusing them of being drunk. Peter is explaining that, what was written in Joel was what they were witnessing - you know, the part about how He would pour out His Spirit on His people and verse 33 shows that this is Peter's main point where he says, "...He poured out this which you now see and hear."I think you are avoiding the point Peter was making to the specific audience in question. Peter was telling Jews in Jerusalem that just like the Northern Kingdom was in the sights of the Assyrians and the Southern Kingdom was in the sights of the Babylonians the Jews in the first century Jews were going to have a Day of the Lord military disaster applied to them as well. Jesus taught exactly this message when he referred to Jeremiah 7 and 19 and possibly Isaiah 66 in his speeches. Those people in that day were due to be wiped out. It was a national disaster. Sure, an individual person could get away but that was not the point. The point was that the nation was in jeopardy. The people (thousands of them on Pentecost) repented because of the threat that the nation was going to be sent to hell.
Then in verse 36, he points out to the crowds that the Man they crucified had been made both Lord and Christ. At this the people were 'cut to the heart'. This doesn't sound like fear of impending doom but rather, guilt for having been responsible for the death of their Christ combined with a desire to submit to the One who had been made Lord and Christ. No, I don't think that the motivation of these men on this day was the fact that they might avoid doom if they repented, but rather, an awakening by the Holy Spirit to the Lordship of Jesus.
