To answer your question, White Plains has a supercharger at the Sheraton Hotel lot right off of I- 287 on your way to the Como (formerly Tappan Zee) bridge. Also as noted earlier a supercharger in Newburgh close to both I-87 and I-84. We used both on our way to Binghamton were we used the supercharger on Front Street at the SPOT restaurant, a little north of the city and right off of I-81.
I picked up my M3 in Mt. Kisco Nov.7 to drive to near Syracuse, NY.
Asked in advance for full charge. Received with 100 miles. Trying hard but frustrated delivery manager and staff told me that they had only one supercharger at the delivery center and it had broken down They were trying to deliver 15+ cars per day and only had a few 240 plug in outlets. He told me they are delivering for all of not only Up state NY with travel distances of 450+ miles, but also Vermont and New Hampshire because a sales tax glitch in Massachusetts requires full payment of Massachusetts tax and not ability to recover it for out of state residents. Actual show room and service shop about 1 mile distant also had no supercharger!
After facing the wrath of my spouse, the delivery manager presented us with one of the coveted? toy size model M3's and a folder with a print of the preliminary concept sketch of the M3! Staff tries very hard under very trying (overwhelming) conditions with inadequate capital investment Tesla in the delivery point. Note - I and others turned down home delivery because of reports on this site of discovering problems at delivery and inadequate orientations using that method.