What is the charge for stealing a stop sign?

Theft of a street sign might be classified as misdemeanor petty theft or felony grand theft, depending on the value of the sign. There also might be other associated charges such as interference with traffic control devices, but those don't apply in every state.

This kind of theft could also have civil consequences. If the absence of the sign contributed to a traffic accident, the thief could be named as a defendant in a civil lawsuit and be liable to money damages.