What does everyone use to indicate Police? My friends and I have always used tapping your helmet to warn others.
Today a small group of us are riding around the backroads of Langley. When we pass a sidestreet, I see a ghost car coming up to the stop sign and I KNOW he is going to follow us. I tap my head to warn everyone and sure enough he turns right behind us, as we all slow down to speed limit. Well we have a nice leisurely ride with our friend following us. As we approach another side road a sportbike turns in the opposite direction, coming at us. I could tell he wanted to show us he was a 'wheelie' good rider and I immediately give him the slow down sign, waving my hand up and down with palm down. He ignores my first warning so I start tapping my helmet as he passes me at increasing speed. The rider at the back said he turned it off just before the cop, most likely finally noticing why I'm waving like a fool. Well the officer didn't bother with him and didn't follow us as we went down the road our fellow rider came from.
It made me wonder if he knew what I was doing tapping my head.