I'd be going around sealing any holes in the building useable by mice , putting out traps and D-Con wedges, and watch the condition of the roll-bulb seal under the garage door every so often , they will hole those seals. And check your outside A.C. unit , they ate my insulation + nest , in mine. Every year I leave D-Con wedges under a cut milk jug cover with a mouse hole flap . Set the wedge up on stones to keep dry underneath ; one close to the garage and one next to the A.C. unit ; that seems to have kept them out of my motorcycles , etc. for many years since and I live in a woods.
20 years ago I caught them getting into my house up the corner pieces of my vinyl siding , I filled the holes with Great Stuff polyurethane foam - ( aerosol can ) and found out they hate habanero sauce , so mixed that with paint and painted the underside of the urethane foam from deterioration. The sauce and paint creates a kind of gel-like paint but still paintable and still works to keep the mice out.