Audio problem: When the one police officer says "Headquaters, disregard my last transmission", he is upside down in his car. When he says that though, his words are out of sync with his mouth. (01:20:00)
Audio problem: The section of sound effects used as the Trans-Am and the big-rig pull up to the warehouse to get the beer is exactly the same 'loop' as the effects used when the Trans-Am and the big-rig stop by the pond to give 'Fred' his burgers for lunch. Specifically, the Trans-Am's engine idling down to a stop, then the T/A's door closing, then the big-rig's air brakes squealing a very distinctive sound and finally the big-rig's engine rattling to a stop. Exact same 'loop' both times.
Answer: The trailer appeared in a recent episode of "The Walking Dead"
The trailer on the walking dead episode is a replica it's not the original one used in the movie as the one in TWD is a standard low slung with air baffles the original one doesn't have those and is also refrigerated.