I would cover them up. Any veggies that are not cold tolerant, bring inside.

It could. Many plants suffer chill injury at temps that high, especially if the temperature falls rapidly. Covering, as Bob suggests, helps trap the warmer earth's heat and helps moderate temps under the cover significantly. covering works best if the cover goes all the way to the ground, all around the pots. It's too late now, but for next time chill is expected, slightly drought stressed plants are less susceptible to chill injury.

Al