The only reason they allow you to have a gun while archery hunting deer is if you have a ccw. They did this because if they didn't it would impede on your rights to carry.
Thank you for contacting the Minnesota DNR.
You are correct, your friend is not. Even having both licenses, a person can't have both weapons with them at the same time. That person would need to choose which weapon and license to use, can’t do both hunts with both weapons at the same time.
Please feel free to contact us if you have further questions either by email or by calling 888-646-6367 M-F 8:00 a.m. to 8:00 p.m. and on Saturday 9:00 a.m. to 1:00 p.m.
I have caught them on Vermilion when the mayflies are hatching in the evening by using a fly rod with small poppers or may fly type dry flies. Just cast to the surfacing fish.
A spinning rod with an Adjusta Float with poppers or flies may work even better.