A law enforcement officer can stop a vehicle in a drive thru at McDonald's for DUI?

In Arizona, a law enforcement officer has the authority to stop a vehicle in various locations, including a drive-thru at a fast-food restaurant like McDonald's, if there is reasonable suspicion that the driver is under the influence of alcohol or drugs. The key factor here is the presence of probable cause or reasonable suspicion. If an officer observes signs of impairment, such as erratic driving or the smell of alcohol, they are justified in initiating a stop regardless of the vehicle's location, which can include a drive-thru.

This authority is established under the law to ensure public safety and was designed to prevent impaired driving, which poses a significant risk to everyone on the road. The location does not limit an officer's ability to assess a situation and take appropriate action.

Therefore, the correct answer is that an officer can stop a vehicle in a drive-thru if they suspect DUI, as safety considerations outweigh the location of the vehicle.