Gatso aren't supposed to flash you oncomming due to it being a distraction etc, if there was no markings on your side of the road i'd go with someone else set it off and you just happened to be going through at the same time.
Used to watch it when it was new and exciting lol. Not seen much from any of them in last few years probably went to far and MTV couldn't show. All about Nitro Circus these days
I've got one on and love the sound of it, always preferred the chirp rather then the fast and furious lets drag it out one lol. You'll keep alittle bit of turbo chatter as i've still got a fair bit.