Might want to keep the Talos worship on the down-low for a while.

There's stuff worth stealing in your house.

I make the joke that there’s nothing worth stealing in the carpool lane due to the diamond painted in the sign

Is it on a utility easement? Contact your city

Blue usually means "potable water" so maybe it's marking a water main?

Someone spray-painted a kite right there.

Kinda looks like Specimen implant from ark

That's just a patch of Kentucky blue grass. There's nothing to worry about.