Brumley v. State
In Brumley v. State, Alaska App. Memorandum Opinion No. 3263 (October 11, 1995), 1995 WL 17221321 at 1-2, the defendant signaled a left turn and then, after waiting ample time to turn, continued straight, flashing her brake lights several times as she drove away.
In upholding this stop, the Court stated that the unusually long stop in the turn lane, coupled with repeated braking, "reasonably indicated that the ... driver was experiencing ongoing difficulty or impairment rather than simply momentary hesitation or indecision." Id. at 2.