The fatal flaw is that DK’s third factor in his conclusion, “the O's view of C1 was briefly obstructed by another car, C2, around time t = 0“ is wrong. Car, C1, is never fully obstructed because the time for full obstruction is less than time t’, the time to decelerate, stop, and accelerate or “go over its maximum“. Therefore, a portion of C1 was always visible to the officer, who verified correctly that C1 did not stop as required. Case closed and guilty as charged! Figures don’t lie, but liars figure - ignore basic reasoning at own risk.