The American Civil Liberties Union sued the city of Savannah on Friday over its plans to ban signs and posters from an area where Vice President Mike Pence plans to participate in a sprawling St. Patrick’s Day parade.

City officials immediately backed off what they had previously said would be a complete prohibition of signs on the leg of the parade route being secured for Pence’s visit Saturday. Savannah city spokeswoman Michelle Gavin told The Associated Press she misspoke at a news conference earlier this week.