Ya gotta go,ya gotta go.
Actually, I doubt this mailman wanted to do this. He may have a problem that gives little notice or control.
One time I got stuck in traffic coming back frm LAX and couldn’t pull off the freeway cuz it was just like a parking lot. I did something I hadn’t done since 3rd grade. I have sympathy for the guy, actually. I’m pretty sure it was a special emergency