Families driving down Route 1 in Boston did not expect to see a construction sign that said, "Penis for lunch."

Transportation authorities said the sign was the work of a prankster who was able to hack into the system that controls the signs.

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Authorities didn't find out about the sign until it was up for most of the morning and afternoon. The sign was soon shut off, instead of being re-programmed.

"Some people might see it as a joke, but this is a road that is traveled on by families and children and there are some people that don't find it funny," said a transportation spokesman.