Dunno, man. It appeared last month, along with all these zombies. That's just a thing that happens out here sometimes, stuff popping in out of nowhere with no explanation. These trucks are new...

[While he's talking, he waits for Garrus to scootch on out of the way, and once he's clear Peter studies the trailer for a moment before stepping back and shooting a couple strands of webbing at it. He gives them an experimental tug, pulling the trailer a few inches.]

There we go, that'll work. But yeah, these trucks weren't here last month. I feel like there weren't as many zombies, either. I don't really get the zombies at all, to be honest.