Back in Zimbabwe I used to drive stoned all the time, but ya, like you I was very seldom not totally blazed. Had an old automatic merc so could drive and roll. Even hooked up a big Hookah pipe between the seats for a couple of road trips, but hey, that was zim, you could get away with all sorts of shit there. Gave a ride to a cop on my way to work one morning, had a couple of oz on the glove box and half a bottle of whiskey under my seat and when I dropped him off at the station, he offered to pay for the lift. Good times, good times. Always felt perfectally safe, and only ever had two accidents (both very minor) and both times I was straight!