BNSF, switching and building train, San Diego--lots of slack and banging action 

I got lucky and saw a BNSF freight approaching the Fifth Ave crossing in San Diego, across from the Convention Center. I thought it was heading north, but instead, was switching and backing up. Lots of slack and banging action, tried to catch as much of those sounds as I could.
Date: Monday July 1, 2024, time was about 8:00am.