To report these cars?

[Kubrickian]

I drive home on a main road and a large part of the beginning is surrounded by large empty fields.

I drove by two cars (about 3 meters apart) pulled up on the side of the road next the empty fields (there are a couple of houses sort of nearby but not close enough that they were potentially be parked there visiting someone)

Driving back to work this morning and both cars are still there. Just seems odd that they have been there all night just next to nothing really with really cold temperatures.

Should I just ignore and mind my own? It's just one of those situations where if something had happened I'd feel so guilty.

Or maybe I should wait until I leave work at 6 and see if they're still there then? And when I say report I mean the non-emergency number.

Ring 101 and tell them. It's wise to report anything out of the ordinary in the local area. It might be nothing but there's no harm in having it checked out.

Yes, I think you should ring 101. It does sound a bit odd and the police should be happy to check the cars out.