DD, the following might answer some of your questions.
It looks like the whole town of Bolingbrook turned out for the John Travolta appearance.
From the promotional website for "Battleship Earth":
"JOHN TRAVOLTA DRAWS THOUSANDS OF FANS IN CHICAGO
AND BECOMES AN HONORARY POLICE CHIEF!
John Travoltas appearance at the Meijer Store in the Chicago suburb of Bolingbrook attracted more than two thousand fans, lots of media and a large contingent of the local police force, including members of the SWAT team.
What caused all the commotion? Well, John, who is well known for the bad guy roles he has played in such films as Face Off, Broken Arrow and Pulp Fiction, was in Chicago as part of a whirlwind
promotional tour for his upcoming film Battlefield Earth, based on the best-selling novel by L. Ron Hubbard. Travolta plays Terl - the alien security chief of a conquered Earth - who according to the actor is far more evil than any other movie character he has ever portrayed.
Luckily
both the Mayor of Bolingbrook, Roger Claar, and Police Chief Kenneth Each were willing to overlook Travoltas recent tendency to play villains and instead awarded him an honorary Police Chiefs badge.
Travoltas fans turned out in mass, some arriving ten hours early so they could be the first in line. As the crowd grew bigger throughout the day, so did the excitement.
After signing 500-plus copies of Battlefield Earth and posing for hundreds of photographs,
John received a mayoral and police escort to a waiting helicopter to take him to his next stop on his tour. Even though it was a long day, there were over a thousand cheering fans waiting to see him off."
"Local policemen and members of the SWAT Team
pose with one of their favorite villains."