Really awesome idea! I enjoyed the tutorial very much and like the style a lot. Unfortunately, the game didn't run so well for me past the tutorial. For some reason all the boxes got all stuffed up and the game was laggy for me.
Other than that, I got the feel for the game in the tutorial and love the concept. I think walking away from the truck to close out that truck menu would be nice instead of having to use [x] but that's just my preference :)
Nice submission!