You can check to make sure they received it, and if there were any discrepancies with the class/category that you claimed.
Go to: http://www.arrl.org/news/2014-arrl-field-day-logs-received-list-available-for-review
Scroll way down to the bottom of the page and download the PDF.
Even though we got an e-mail confirmation when our log was submitted, I double checked to see if the log for NJ2SP was there. You can call me paranoid, but I just wanted to make sure our inaugural Field Day effort gets counted amongst the masses.
72 de Larry W2LJ
QRP - When you care to send the very least!