Re: Meter base problem?
I agree with Canuk, the meter would have to be removed to get to the connections, so it is unlikely that the meter would be damaged. A second point, you said when you turned off the main breaker the meter stopped which indicates that something beyond the panel is drawing current. Turn off all the breakers except the main and the meter should stop, then turn on the breakers one at a time to find out which are drawing current even though you think nothing is turned on. This will allow you to find out what is actually running.
Be sure you live your life, because you are a long time dead.-Scottish Proverb