Colorado Meth

This blog on this story of a man arrested for "suspicion of meth" simply for buying more Claritin-D than the law allowed (buying for his son who can't legally buy put him over the limit) made me wonder if anyone in Colorado's run into this problem. Do you know of anyone who's had run-ins with the authorities thanks to these laws? Do you suffer from allergies and worry that your previously legal use of Claritin-D or other over the counter drugs will get you flagged as a suspect?