Get all documents from the prior two alignments showing before and after alignment print outs.

Yes, they have them. They are attached to the work order and warranty documents they retain in their files. Ask for them. If you are told "Oh, they didnt save them" I would just show up at the dealership and ask for the last two files on the warranty claims done on you car- look through and get the pages.

The REASON, is that there is a short warranty on alignment (like 2k or 5k miles as I recall)...if your tires go to hell in short order you want the prior work orders to show something was at issue...

A