Do they do that over there? I've heard that some places in Europe don't, but I know someone who had a container in their car and when they told the waitress that, she said it was fine to take it out that way - but they didn't provide that service.
I've had surgery and can't eat much at one time and was thinking of taking zip lock baggies in my bag for the food I'm not able to finish at a meal and will want to eat at a later time, but don't want to be rude.