Do you think it is innapropirate or ill-advised to contact a retired professor for help?

The dean of my major retired at the beginning of this semester. He was in charge of the club that pertains to my major and did not mention his retirement to us. I would like to reach out to him as he is very knowledgeable. I'm not sure if reaching out would be appreciated since he did not mention his retirement. I feel like that "means" he doesn't want to be bothered with students...?