Was the traffic stop of Mr. Ceja unreasonably prolonged?

QUESTION PRESENTED FOR REVIEW 1. Was the traffic stop of Mr. Ceja unreasonably prolonged when officers conducted two consecutive investigations, one for an alleged traffic violation and one for suspicion of drug trafficking, when they did not discover any new indicia of criminal activity during the course of the traffic stop and information relevant to both investigations was known to the officers from the outset of their traffic stop? 2