https://www.11alive.com/article/news/investigations/the-drug-whisperer-drivers-arrested-while-stone-cold-sober/85-437061710?scroll=0
The waitress spent the night in jail, had her alcohol server's permit revoked because of the arrest. After four months, prosecutors dismissed all her charges -- because the blood test came back completely clean.
"You look stoned to me" is probable cause for jailing? That is right up there with the "I smelled pot" warrant.