Absolutely.
And part of the reason I never allow my vehicle to be searched without a warrant.
> I never allow my vehicle to be searched without a warrant. <
Don’t forget the ol’ drug-sniffing dog routine. The cops can have a dog sniff around your car without your permission. They can search the interior of your car only if the dog has alerted.
But if the cops want the dog to alert, that dog will alert. (Some reports have said police dogs false-alert over half the time. Bias of the handler is one reason for that.)
They don't need a warrant, they just need a K-9 to "alert" on your vehicle.