With fewer drivers on the road because of coronavirus, Allstate will return $600 million in premiums to its customers

A nearly empty Michigan Avenue bridge is seen March 17, 2020, during the 5 p.m. evening rush hour in downtown Chicago. Northbrook-based insurer Allstate says it is offering a “shelter-in-place payback” to its Allstate, Esurance and Encompass customers because so few motorists are on the road.(Brian Cassella / Chicago Tribune / Chicago Tribune)