Earlier quoted context omitted.
Why are you worried about the government recording your usage of Sudafed? What is anybody going to do with that information? Serious question! I understand the principle involved; I just want to know if there's some practical concern.
Every database that contains your PII increases your exposure to a breach and likelihood of having to deal with it. It's not the sudafed use that makes it a target: it's the driver's license.
I don't mean to dismiss that point, it's a valid point, I'm just considering it closely.