IMPORTANT: was he sleep walking or no?

My 50 year old father just went to the bathroom, got in his work clothes, went downstairs got his keys, put on his shoes and coat and went to go to his car because he claimed he has “work”. He doesnt have work until tomorrow 8 am. I am very concerned. He has slept walked in the past but I’ve never caught him in the act. It was like I wasnt talking to him more like he was actually asleep. Should I be concerned? I am very worried.