One biggest mistake you made is jumping into conclusion of yourself without knowing the fact. But forget about that unless the airline charge you a reasonable price for changing the date of returning flight from 5th to 4th (below 198 dollars), it it not worth staying on Hotel when you have other options available. One quick suggestion to you, Red-Rooster, if you are not carrying a heavy luggage and loads of luggage, why don't you make a short trip to New York City and spend the evening of July 4th and July 5th till you fly. It is worthy (if you have not visited prior) and not to mention, Port's Authority has a constant bus service from NYC to Newark Airport, NJ (if you are flying from Newark). Enjoy!!!