Question: While on patrol, Officer P saw a vehicle, driven by D, that failed to heed a stop sign. Officer P saw many drivers do the same thing that day, but she did not bother to stop them because she considered them minor traffic violations and a waste of her time. She stopped D's vehicle, however, because she had a hunch that D had drugs in the car. After the stop, Officer P had a dog sniff the car for drugs. The canine sniff led to the discovery of five pounds of marijuana in the passenger compartment of the car. Was the search valid? Defend your answer.