Earlier quoted context omitted.
A dog though is considered always reliable: https://nccriminallaw.sog.unc.edu/supreme-court-alert-by-a-t... So maybe they should have used TV-sniffing dogs instead? :)
I wish I could remember the source of the statement: "To search someone's vehicle, a police officer needs a warrant signed by a judge or permission from a dog."
Qualified immunity pretty much guarantees there's no punishment for any shenanigan as long as it can be plausibly presented to a judge as the police believing it's lawful (it doesn't need to be lawful, just belief is enough). The worst they risk is evidence being excluded - so no risk at all vs not searching.