Motorists may be in for a surprise if they spot flashing red lights in their rearview mirrors in this Sacramento suburb [Rancho Cordova] during the holiday season.

Police are stopping law-abiding motorists and rewarding their good driving with $5 Starbucks gift cards.

This has been making the rounds for the past few days. The legal minds seem to agree that this isn't just a stupid idea, its unconstitutional.

The Volokh Conspiracy - Unconstitutional Rewards: