My initial thoughts were same as yours, 12 minutes? Seems improbable but possible if the hotel was right there at the airport.
It is easy to get to that airport in 12 minutes. I have done it several times.
Location: The Comfort Inn is located off exit 7 of I-95 (North or South) at 90 Maine Mall Rd. We are 1 mile from the Portland International Jetport and offer complimentary airport transportation