may not know the time of the suspect's last drink, the amount of aleohol consumed, or the rate at which the suspect will metabolize alcohol. Finally, an officer cannot know how long it will take to obtain the blood sample once the suspect is brought to the hospital Under a totality of the cireumstances test, an officer would be called upon to speculate on each of these considerations and predict how long the most probative evidence of the defendant's blood aleohol level would continue to exist before a blood sample was no longer reliable.[ ] The court also directly addressed the possibility of obtaining a telephonic warrant: Shriner also contends that police may obtain telephonic warrants quickly and, therefore, the police can easily obtain the relevant evidence they need with a 8) (<HOLDING>); State v. Moylett, 313 Or. 540, 836 P.2d 1329,
holding that the natural metabolization of alcohol in the bloodstream does not present a per se exigency and that consistent with fourth amendment principles   exigency in drunkdriving cases must be determined case by case based on the totality of the circumstances holding that violation of state law was not a per se constitutional violation holding that bloodalcohol dissipation does not create a per se exigency with respect to the warrant requirement holding that violation of city ordinance does not constitute negligence per se holding such agreements to be per se illegal