As many times as I've been to Staples, I've never had to leave the building during a game and get back in. Do they allow re-entries?
EDIT: Guess not....from the website....
STAPLES Center has a "no re-entry" policy during events. Guests who wish to return a prohibited item to their vehicle or need to exit and re-enter due to personal emergencies, must first make contact with a Guest Services supervisor or manager via the Guest Link service centers to make necessary arrangements.