I noticed this evening that the frost did do some harm. The yellow pear tomato is not looking too healthy. All the top leaves appear to be dead! The bottom set of leaves still looks okay. I hope it will recover!
Two of the chili peppers took it for the team too. Being the last covered, we had used the plastic bags on them.
Lesson learned: Plastic does not keep frost out. In fact, I read that it actually keeps the cold in! Please learn from this!