I emailed Collision Experts earlier today to find out how the car was coming along, and whether I'd be able to pick it up on Friday morning. The reply I got said yes: Friday morning would be fine. That works well for me, as I'm supposed to drop off my Enterprise rental car on Friday morning. So I'll drop the rental off, get driven to the body shop, pick up my car, pay my $250 deductible, and zoom on home-- Fit once again.
Meanwhile, I'll be sad to lose the rental car I'm driving: the Honda Civic hybrid is quite, quite nice-- surprisingly roomy, smooth of ride, and easy to figure out, control-wise. I'll miss it.