So...I saw this movie when it came out with Johnny Depp in the nineties and I was in college and it was great fun (although admitedly I was not sober and don't remember it very clearly). I had never read it, but also heard it praised as having one of the best beginnings to a novel ever.
And so, I was disappointed. Certainly it is slightly entertaining and there are some funny moments. But really, it's just one rambling high. Maybe I would have liked it more if I was not sober when I read it, but I doubt this. Raoul Duke is too paranoid, flightly, and generally distracted to be much of a narrator in my opinion. Dr Gonzo (his lawyer) is just an ass and overall I wasn't really smitten by either as main characters.
Raoul needs to enjoy his high or just get over it; being so concerned with "passing" or getting caught just didn't seem like a good way to spend his high.