Those are illegal in VA.
My mother got caught with one once. The officer took it, blasted it point blank with the radar gun, and gave it back saying, I would write you up for this, but it doesn't seem to be working. Lol, it worked up until it got blasted. I don't know if that is even a thing, maybe a coincidence, but that is what happened. It worked fine up until that interaction.
So is speeding.
Like the other guy said, 27 over you deserve what you get.
Why exactly were you driving 87mph????