Again, details matter: how is it stupid.
The courts have repeatedly upheld far more invasive searches and encroachments of vehicles, but now confusingly consider simply observing the outside of your vehicle to constitute an excessive search.
The Baltimore decision is stupid because it contradicts 50 years of case law over what constitutes a search and what degree of privacy you expect to have on a private roadway.
Is your definition of "stupid" anything that contradicts 50 years of case law? That seems.... tautologically limp.