You will have to get the alignment done again. They most likely pull the subframe to do the job and this would mean that all alignment angles are now out of spec.
Man if they dropped your car off the lift you would know it! I have seen a few that have and it is easy to spot. You know where you jack up your car? Well that would be sitting right about where the factory badges go on the front quarter panels!

I once saw a Ford F-150 drop off a lift from it's full height. Something like 8 or 9 feet. Could have just dropped it off the top house and not done as much damage.