Flash your lights twice for radar!

Today I was on the highway. I drove up over the hill and "BAM" three cop cars waiting for speeders. One was outside of his car with radar in hand, and the other two waiting for a signal. I was OK, not speeding "this time" Lol... so I did what I have always done. Passed the cops and Warn the on coming speeders by flashing my lights twice. It was just a not talked about thing we did to beat the system. Do I see the same common courtesy today??? "NO". It's all about them and who cares about the other guy mentality of thinking. I'm not changing, I am here for yah. Be there for me! Thanks...