What is the four symbol (non-factory) logo on the side of many cars?

Question

I live in Baton Rouge, LA. I have been seeing many cars, mostly higher end models like Escalades that are owned by black people, with a strange four symbol logo on the side of the cars. Its located right behind the front tires. It's always four silver stick on symbols. Some look like an upside down question mark and the last two symbols always look like a backwards bending "I". Does anyone have any ideas what these symbols mean?

Answer 1

is it a masonic symbol?