Yeah 100% possible, assuming its like limo tint or even mirrored tint.
Its kind of like how you can see inside a lit house at night, but they can't see you out in the dark.
But if they turn all the lights off, and the porch light on - the inside of the house is pitch black, but you can see the person out in the yard clear as day.
Being inside a dark tinted vehicle only provides security because the inside of the vehicle is DARKER than the exterior. If there were a bunch of lights on in the car, but the outside was dark - the effect of tint would be opposite and you'd be unable to see out, and everyone else could see in.