I think that would still not quite be like driving drunk though, because you're still sober and can learn to compensate for the delay and the blurring, whereas if you are drunk you may be too drunk to implement that, and probably think you're not acting any differently to sober too.
That makes a change from the rest of Grand Theft Auto, in which the aim seems to be to kill and maim as many people as possible, not save people's lives!
It's not entirely about killing and maiming. In GTA: San Andreas, there are missions involving driving a fire engine and putting out fires, and (I think) driving an ambulance as well. Although I'm pretty rubbish at controlling the vehicles so end up running people over anyway. :/
That makes a change from the rest of Grand Theft Auto, in which the aim seems to be to kill and maim as many people as possible, not save people's lives!
There just aren't very many such people :-)