I can’t think of many situations where I would block the street with my truck, armed. The only one would be if they had my kid or had just killed one of my family. Other than that, back off and call the cops with a description. Put the shoe on the other foot for a second. If somebody tries to block YOU from leaving and they are armed, how would you respond? I think I know how I would. I’m coming out of there, no matter what.