Wasn't sure where to post this question. I'm taking a trip from MN to NY and I'm looking to stay on toll roads. I just got a I-Pass account and transponder and I know it will work on NY's interstate 90 but I don't get the discount then correct? Is it worth getting another account started for the E-Zpass or do you have to live in NY to get one? Then the last part is I will be leaving MN without a trailer and coming home with one. Do I have to update the I-pass account when coming home saying I have 3 axles? If so how, do I call or do it online?