The police officer sits in a marked car behind the old Burlington Coat factory building (which is now unoccupied). You CAN’T see them until it’s too late. They are there periodically usually during mid-morning. The speed limit is 45 but people do 55-60.So slow down. Carol Stream is famous for DUI arrests and giving tickets. That’s how they have $ 60,000 Tahoe squad cars. They do not like to give warnings.