"Should I say that I rolled both into a Roth?"
Only if the total actually made it to the Roth IRA. For the portion withheld for taxes you would have to have substituted other funds and completed an indirect rollover within 60 days, otherwise that portion was not rolled over and was simply cashed out.
I don't see where TurboTax raises any issues with the entire distribution going to taxes. It's not an uncommon situation.
