Drove the car for 30 seconds without oil. Help?!?!
 

I have a 2014 Mercedes Benz SLK 55 AMG. I accidentally went over a parking bumper/parking block at 5mph. Usually there are in the very end of the lot but this happened to be at the beginning to mark a no parking zone. I didn't see it and I boom ran over it. Barely though. I reversed the car and parked it in an adjacent lot.

Anyway, my oil started leaking a lot and I looked underneath and it looks like it was only the oil cover. I called the towing company to tow it in. The guy turned on the car and towed it on the truck. It was barley 30seconds and on the truck which is 20-30 ft but car ran out of oil and was almost nil. We noticed a metal ticking noise which wasn't there before. I told the driver that the car says do not turn the engine on but he said it should be fine as we are just loading it on the truck. It's at the dealer now and I should know everything that's wrong with it by tomorrow afternoon. But I'm panicking because I'm worried that there might have been engine damage. How bad do you guys think it might have been damaged?