From all I read here, is they are looking for leaks and other visible issues, if there is none you're fine. If you have any mods that you think will pose a problem remove them and put it back to stock.
I just went through the Lifetime inspection last month and it was no big deal. I combined it with our yearly state safety inspection and it didn't take much longer than usual. The only thing I noticed is that they put it up on the rack for maybe a 2 minute inspection underneath. As noted earlier, it was probably just to check for leaks.
Any preventative things I need them to do for the 09'swhile they have car, issues unique to my model? I have 37,000 miles and no problems so far knock wood. Sorry been away a while and search turned up a lot of little stuff.