Electrical Main Panel

If you're getting it inspected, the city/county inspector will notify the power company when you pass inspection, and they will probably send a service man out to look at it. He will put a new meter seal on for you. They shouldn't get a notification that you have the meter pulled out. If it's a new smart meter, the only time they would know it's out of the socket is if by coincidence they tried to read it from the office while you had it out. If it isn't getting power from the top lugs, they can't read it. The only other coincidence that would tell them the meter is off would be if the power was out to your whole neighborhood, and they just so happened to ping your particular meter to see if it was still out. Highly unlikely either will happen in the time it takes you to change out your main panel. Do that first, and worry about the sub panel after the main one is in and done. I could send you a meter seal, but it would piss your power company off worse to have one from Dook Energy on it than to not have one at all.....lol. Good luck.