I remember that storm well. Wife calls me on the phone to let me know she sees a tornado. Phone goes dead. I was doing ~100 on Parmer to get home, scared that my house and family got wiped out. I figured cops would cut me slack but I did not get pulled over.
We were lucky. 10 blocks away, not so much. I went over there to help. I'm in construction and the cops took it to mean that I could survey buildings and let them know if it was safe to enter. Next thing I know, I have a police escort to Randalls because they thought people were trapped inside.
As a part of Texas A&M's Engineering Extension Service, that had guys nicknamed tunnel rats who would worm themselves through rubble looking for people. I had to direct them where to go. Turns out nobody was trapped inside Randalls. What I learned is if you're in a grocery store during a tornado, head to the frozen food section. Those freezers are so stout they can hold up a collapsed roof.
In 2001, those same tunnel rats ended up in NYC.