July 1st we'll be headed to Boston, MA and are looking for a good overnight stop just north (traveling I-90) of Buffalo, NY. We can't leave until late in the afternoon on the 1st, so we're hoping to get that far before stopping for a few "winks". We thought it best to get through Buffalo so we don't hit rush hour traffic in the morning hours. We would prefer something quick and easy, right off the freeway, since we'll only be there for 6 or 7 hours. Suggestions??? Walmarts, Rest stops, etc.??? Can you park overnight in New York rest stops?