[US] Scammer came to door

Yesterday during the daytime, a woman came to a relative’s front door. She came from a large SUV with tinted windows which was parked in front of the house. It’s very difficult to tell in the video, but possible there were other people in the SUV.

The woman gave a somewhat unusual first name and said she was there to “setup for the proposal.” My relative had trouble hearing and asked her to repeat herself a few times. The woman at the door then asked if she knew someone and gave a very common male name. My relative said “hold on, I can’t hear” and went to the other room. As soon as that was said, the woman quickly left the porch and went back to the SUV and left. Unfortunately, the recording ended before she got in the car, so not sure which car door she went in.

The likely scenarios I found online are 1) Some kind of financial/home repair scam (if they meant proposal like an estimate and not something like a wedding proposal). 2) An attempt to enter the home to look for valuables worth breaking in for late. 3) An attempt to enter the home to immediately steal items or personal information.

My questions are: Which scenario do you think is most likely? Is it worth contacting the police now for this?What steps should my relative take to ensure safety now?

Thanks in advance.