Helping a foreigner with mental health issues

Hello!

An A mart near me has a foreigner (middle age white male) who has been sleeping/ staying outside of their store for the past 3 days. They said he has been drinking all day and not eating. He isn’t violent or causing harm but is clearly a disturbance. However he is not clearly all there. I’m wondering what support can be offered? I told them to maybe call the police but they said he has not done anything for them to be called! Thanks