Answer:
They would refer to Joe's decision as motivated blindness.
Step-by-step explanation:
Motivated blindness is a phenomenon explained by Max E. Bazerman and Ann E. Tenbrunsel where it was described as a behaviour where people ignore information which contradicts their best interest. In this case, since the warrant requirement prevents Joe from using GPS trackers, but not using the trackers prevents Joe from making any real progress against the suspects, he chooses to ignore this information and proceed with the use of the trackers. The motivation being the pressure from the media which results in Joe's proverbial blindness to the requirement of the warrant.