Do you think it is safe?

Do you think it is safe if 5 or 6 14 year olds, girl and boy go to bamboozle? we are planning on being dropped off at a hotel right across from the meadowland stadium on friday, and being picked up there on sunday. would you let your kids stay alone at a hotel for 2 nights? would you let them if there was an adult in the hotel room? thanks :]