I was stopped twice in two months in Binondo area... almost in the same place pa!
The first time, they just aimed their powerful halogen light into my face and into the car's interior. Wala naman physical search or anything.
Second time, they asked me for my car's registration papers pa!
Nothing untoward happened though. Just the hassle of getting stopped.
Of course there are those other times some cops tried to flag me down along EDSA and other major roads. I jsut continued driving but I took a glance or two in my rear view mirror just in case if they got on their motorbikes. usually they don't.