Below are two hotels that are 5 miles or less from Brooklyn Park PD. Both have government rates, but there are no blocks of rooms reserved anywhere since most attendees tend to be local. The Marriott is a bit more expensive than the Hampton Inn, and the Hampton is about 3 miles away.
The recommended airport is Minneapolis/St. Paul International (MSP). These hotels are around 30 miles from the airport and mass transit is not much of an option for transportation to get to and from. I’d recommend a rental car if possible.