No advantage to picking them before it is really necessary. Frost is the threat, not just cooler temps.

Dave

Thanks!

You can also take measures to accelerate their ripening on the vine: reduce watering, pick off new blossoms, shift the roots a bit, and even cover plants at night, especially if temps remain in the 40s overnight. Here's a link that gives more tips for ripening tomatoes on the vine quicker:

Here is a link that might be useful: 10 tips for ripening tomatoes on the vine

I got to put in my 2 cents too. Wrapping in newspaper is a waste and you have to unwrap to check. I just set them in a back corner of the kitchen. And from advice here, I set them on the stem end.