Looks like Paramount and Michael Bay are kicking off a viral campaign early for Transformers 4 as the following billboard has been spotted in Chicago.
Update: Looks like it's part of the set as it's stated the steet has been closed down.
Twitter user Jeff Fall spotted the billboard which reads "Remember Chicago" with "Report Alien Activity" and the phone number: 1-855-363-8392.
Calling the number leads to a voice mail where you can leave a message. We left one requesting assistance from Optimus Prime!
Transformers 4 has a Summer 2014 release directed by Michael Bay and starring Mark Wahlberg, Jack Reynor, Nicola Peltz, Sophia Myles, Li Bingbing, T.J. Miller and Kelsey Grammar.