Since I got married and had kids I have ridden my bike much less and rarely drive, hence a gold license. Before that I made at least a yearly contribution to the police bonenkai/hanami fund.
I think if you are driving a heavily laden van and it is low on the road you might attract attention.
The po pos are certainly getting uppity, I was eyeballed two nights in a row on the same stretch of road while I was cycling home in a cycle lane from the station, po po in a po po car with no lights on doing the irritating slow drive along a busy road while everyone else like me is on their way home after a long day wanting their supper.
I think we are seeing a bit of a ripple effect from Abe's jingoism, no economic success to speak of so they will pump up the Nippon Nippon bit for a while.