It appears as though Waukegan has one, if not two, hatched chicks as of yesterday. Two more eggs to go up there! Evanston should be hatching any time now and UIC probably over the weekend, so make sure to check in on the webcams!
If you find a peregrine on the ground, Mary Hennen has put up some information along with emergency contact numbers for the Chicago region on the FIELD MUSEUM'S PEREGRINE FALCON PAGE
For those of you not from the Chicago region, the information on what to do when you find a downed peregrine is still valuable, even if the numbers are not. It is highly probable your own area has monitors. My suggestion would be to try wildlife rescue organizations or rehabbers, Animal Control and/or any zoo or natural history museum type place in the area.