> Plus, a cop can just call for a canine squad and then get the canine to signal and then use that as probable cause for a search if they really want to fuck your day up in a way that is totally legal.

Can't make you wait around for a canine without probable cause. https://thehill.com/regulation/court-battles/239513-court-ru...

> While officers may use a dog to sniff around a car during the course of a routine traffic stop, they cannot extend the length of the stop in order to carry it out.