I too was at the Jason Aldean concert and the performers were fantastic.
On the other hand the access to adult beverages was jut plain pathetic. I stood in line to buy tickets for beer then stood in line to hand over said tickets for the beer.
There were 30,000 plus people at the Grand stands and the ticket booth that I went to had two 70+ year old people handing out tickets AND taking money. Granted there were multiple ticket booths but it was not a smooth process by any means.
All in all the concert was great, the grand stand processes left something to be desired.
This is why you tape a flask to your inner thigh.