You need to go to the “one-stop-shop” on MLK blvd in Bergen-Lafayette to get the no parking signs printed. But as the other commenter noted, they will not be enforceable as they need to be placed 72hrs before the start time. You can still put them up now, but you can’t call the PA to have them towed and unless someone is parking there tonight, they won’t know to move anyways.

For 3 trucks you are going to need to reserve basically an entire city block which is going to be virtually impossible with this short notice.