This is probably the reason for the officers you saw. It wasn't green Ninja day. For the rest of us it's a reminder of the drivers we share the road with.
I ran a simple errand today after changing Elvira's oil. Looking for something to throw on the grill. A very fat lady in a white minivan tried to take me out. She must have smelled the beer sausage in the saddlebag! Actually, she screwed up and got into the wrong lane. Instead of being inconvenienced by her mistake, she tried to go straight instead of turning. Only thing is, her lane on the left and my lane on the right were both left turn only lanes. I guess it was all right to endanger other people as long as she wasn't put out any. No harm, no foul. I have a much superior brain to whatever the stuff she has in her head. I noticed the eddy in the current and didn't commit to the turn based on my sixth sense. We need to use our brains and all our senses as we ride. Most people don't use theirs while driving.
Here's an article about a local law enforcement effort. The sad thing is the number of citations in a four hour period with four officers.
Head ups and stay alert out there!
Miles and smiles,