Also why boot it after unless no tow trucks could get there in time and no authorities gave a fuck to stick around and wait
CFD doesn't give a fuck about a burnt car once the fire is out, they have way more important things to worry about. So they move on with their lives.
CPD doesn't give a fuck about a burnt car that isn't blocking traffic. For all they care it's still just a parked car. So they move on with their lives.
Meter maids roll up a few hours later, see it's parked illegally and place a request for the owner to make a donation to Rahm's re-election fund. Repeat until boot is placed.
Alternatively, meter maids roll up a few hours later, find that the vehicle already has a few outstanding tickets, and immediately boot it.