Being the season is that far off I would just dump the charge out the back if it's an inline. Run a patch down it and wipe it down. Then re-load it at the beginning of season.

I don't unload my gun during gun season until I shoot something, but I don't bring the gun in the house either. I leave it in my car or garage in a locked case. Or sometimes in my locked deer blind. I don't have anyone to mess with my stuff either. If I still kids at home or something I might unload it even if it was locked in my car. I for sure would not bring it in the house.

In MI a ML is not considered loaded unless there is a cap or primer in it. So It's legal to transport it this way. I would check your state to make sure.

If you have a side lock they make a CO2 discharger to unload them with out firing it.

Paul