I am very envious! I moved to AZ from MN 2 years ago (lived in Cottage Grove) and I have also thought there would be some very cool things to shoot. Davisim gives some great advice. I looked at DJI's no fly zone map and there aren't any no fly zones downtown. Your copter won't even make it off the ground if you're in one anyways. USBank Stadium would be very, very cool. If there is an event there will probably be a TFR in place and you shouldn't even think about it. Any other times I don't *think* there would be anything legally preventing you. Me personally, I'd stay away from the stadium but that's just me. According to the FAA, if you're flying for fun you should never fly near/over a stadium. Regarding airspace, you'll be in Class B airspace but it looks like it doesn't start until 2300 ft. according to where you would be.
Good luck and post some content if you pull the trigger. On a side note, judging by your handle I'm guessing you could probably get some great footage over Lake Minnetonka during the Summer.