On July 26, 2025, at 0230 hours, Stillwater Police Department Sgt. Parke was on routine patrol in a marked squad car. While parked at Myrtle Street East, just west of Main Street, Sgt. Papke observed a red Ford Expedition going westbound on Myrtle Street. When the vehicle passed his squad, Sgt. Papke could see the male driver, who appeared to be concerned about the squad car's presence. The driver looked over at Sgt. Papke and then abruptly looked straight ahead to avoid eye contact. Sgt. Papke got behind the vehicle and began following it.
The driver then took off at a high rate of speed, going west bound on Myrtle Street. The driver took an aggressive turn to go northbound on 3rd Street North. When Sgt. Papke turned to go northbound on 3rd Street, he saw that the driver had turned off the lights, in what he believed was an effort to evade the squad car. He noted the vehicle speed was around 70 miles per hour at this time. He observed the vehicle turn to go westbound onto Laurel Street West from 3rd Street North. At that point, Sgt.
Papke was able to catch up to the vehicle, as it appeared to be having mechanical issues. The vehicle appeared to have stalled in the middle of the roadway, and Sgt. Papke activated his emergency lights and attempted to effectuate a traffic stop. The vehicle continued to drive in an evasive manner westbound on Laurel Street West. The vehicle passed 4th Street North and appeared to continue to have mechanical issues. Eventually, the vehicle was unable to be driven any further and it pulled up onto a curb and came to a stop.
Sgt. Papke got out of his squad car, and after other officers arrived on scene, had the driver exit the vehicle. He was subsequently identified as MASON GREGORY JOHN FEINER [DOB REDACTED]. Sgt. Papke detained him and placed him handcuffs. While standing next to Feiner, Sgt. Papke could smell a strong odor of alcoholic beverage coming from Feiner, and saw that his eyes were watery and bloodshot. It appeared to Sgt. Papke that Feiner was heavily intoxicated. Due to Feiner's vehicle being involved in a pursuit and parked on the curb, he conducted an inventory search of the vehicle prior to the tow truck arriving.
Inside the vehicle, he located a Smith and Wesson revolver handgun, and a sandwich baggie that contained what appeared to be mushrooms inside. The baggie contained a full mushroom and seven pill capsules with what appeared to be ground up mushroom inside the capsules. The weight of the suspected mushrooms was 7 grams. Sgt. Papke conducted Horizontal Gaze Nystagmus and Vertical Nystagmus tests on Feiner and observed indicia of intoxication. He did not conduct any further field sobriety tests on Feiner due to him being in handcuffs.
Feiner refused to provide a preliminary breath test. Feiner was placed under arrest and transported to the Washington County jail. At the jail, Feiner was read an implied consent advisory and agreed to provide a breath test. The results of Feiner's DMT indicated that his blood alcohol content was.17. The suspected mushrooms were sent to the BCA for testing and tested positive for psilocyn, a Schedule I controlled substance. Feiner did not have a permit to carry a pistol on July 26, 2025.
