According to the Shift Payments FAQ you must reside in one of the following states to spend bitcoin via Coinbase:
AL, AZ, CA, DE, DC, GA, ID, IA, KS, ME, MS, NE, NV, NJ, NC, ND, OK, PA, PR, SD, TX, VT, WA, WV<p>[1] <a href="https://www.shiftpayments.com/faq" rel="nofollow">https://www.shiftpayments.com/faq</a>