I got my Gold Alert email with the stall number 3 hours after I picked up the car today.
The email really isn't a huge deal, except when I don't get one I start wondering if I ever actually booked the rental. Which brings me to my next gripe -- the iPhone app doesn't list your reservation once you reach the pickup day. So I have to search for the email with the confirmation number and paste it into the app to look it up. Big PITA.