Need Opinions

So I’m going to the Ado concert in Newark, and I’m super excited! I also want to go to the pre sale for merch, but the only problem is it ends at 6 p.m., and I don’t get out of work until 3:30. So, if I go, I’d probably get there around 5:00, but I’m worried they won’t have much left by then, and I’d do all that driving for nothing. So, my question is: should I wait until tomorrow to go, or go today and hope they still have stuff left?