"MOTORIzED DECOY RESTRICTIONS
From the opening day of the duck season (which includes Youth Waterfowl Day)
through Saturday October 6, a person may not use a motorized decoy or other
motorized device designed to attract migratory waterfowl. On water bodies
and lands fully contained within state wildlife management area boundaries, a
person may not use motorized decoys or motorized devices designed to attract
migratory waterfowl at any time during the duck season. This restriction applies
whether the motor is running or not. Devices without motors, such as windpowered
spinning-wing decoys, are not restricted under this law."
I thought it was worthwhile to quote the rule on motorized decoys in MN. The use of a remote on-off switch is not mentioned.
Good luck, only seven days left for duck hunting in MN this year.