I was unable to e-file my NY State return because I couldn't e-file my federal return due to an extra form. But NY legally requires that I e-file. How do I proceed?

I'm currently studying abroad, so the extra form on my federal return dealt with the inclusion of a foreign address. TurboTax wouldn't let me e-file my state return without also e-filing my federal return, but also made it clear that that wasn't possible. I chose to print and mail both of them, only to discover in the PDF that NY State legally requires that I file electronically. I'm not sure how to proceed, especially considering that I'm abroad at the moment and cannot provide a phone number for TurboTax to contact me (they only allow US numbers to be entered).