I certainly agree with the suggestion that possession in an automobile is not a major component of this bill. Quite frankly, it doesn't add a lot to the bill. As far as the potential unfairness stemming from a charge for it, I can colloquially say it's one of the most unfair parts.
I would still be particularly concerned about the ramifications of the part dealing the two-beer defence and having some unconstitutional provisions passed that later get struck down. It might be very beneficial to defence lawyers—we would get thousands of new clients who normally might have pled guilty—but it could cause chaos for the justice system.