What was that all about?

Driving back to work, I saw a cop car with its lights on blocking the right lane of the expressway. I slowed to a crawl along the left edge of the left lane as I passed, thinking there must be an accident. Instead, as I slowly panned across the scene, I saw a white fleet vehicle with a home decor business name painted across its flank. Inside were three middle aged soccer moms with eyes wide as saucers. Outside their car crouched a female police officer, gun drawn and pointed to the ground with her other hand pointed at the driver. As I passed, I heard the police woman yelling "Keep your hands where I can see them!"