Room in my car from NYC and for one in my hotel room

There is room for a couple people in my car.   I am staying at the Embassy Suites at 222 Saint Paul Place, equidistant from both main venues (about .5 miles).  The room is prepaid, you pay half which is about $410.    I will be departing on 5/21 at approximately 11-12 in the am and am returning to NYC Monday morning on 5/25.