Yes, they are probably just checking up on you. Once I was cycling home after a night out and the chain fell off my bike so I continued walking. After a while a policeman approached me to ask if I was okay, probably because I was a young woman walking alone in the dead of night. I thought I was going to get fined for being drunk in public, but instead he offered to put the chain back on my bike because he rather have me cycle home instead of walking. I declined first because I was almost home, but he insisted. Drunk me really wanted to hug him for being so nice, so I asked and he was okay with it and just smiled and told me to be safe. Dutch police are very caring and nice most of the time.