Up top you can see Teen Titans Spotlight #10 (starring Aqualad), which came out in February of that year. That copy of Batman (#398) is a little old, but Outcasts #1 and Tales of the Legion of Super-Heroes #354 are all from the same year, so overall it's pretty spot-on.
Since all the comics seen are DCs, I assumed that Labor Day was a Warner Bros. film, but it's not--it's Paramount. So why the rack is all DC books is a mystery to me, for the moment at least. In any case, nice to see an Aquaman comic (sort of) in a big time feature film, if only for a moment.
Eagle-eyed F.O.A.M. member D.C. Dill alerted me to this, so he deserves all the credit. If you want to watch the entire trailer, you can watch it here. Thanks D.C.!