Low Bridge

A truck driver was driving along on the freeway. A sign came up that read, “Low bridge ahead.”
Before he knew it, the bridge was right ahead of him, and he got stuck under it. Cars backed up for miles.
Finally, a police car came up. The cop got out of his car and walked around to the truck driver. He put his hands on his hips and said with a smirk, “Got stuck, huh?”
The annoyed truck driver replied, “No, I was delivering this bridge and ran out of gas.”