Bomb? If that were the case it would seem the press and people wandering around in the pic of the immediate area wouldn’t have been there. They generally set up safe containment perimeters when things are active like possibly explosive searches.
Who knows, maybe all the equipment was for the few exposed to pepper spray. Of course treatment for that entails blinking fast and soapy water.
The reason I bought it is because so many responding departments are over staff. So much equipment and personnel it’s not surprising to see 5 vehicles and entire crews of people showing and hanging around incidents like minor vehicle collisions.
Outside is likely safe. Inside is where they would be searching. The theater and adjoining stores. It would take some manpower.