That froze, man that can suck whatever else you find Make sure he pressurizes before sealing any thing up. Small cracks Matter!. I tell you what I am really starting to like Pex tubing instead of copper.
Yes... he started out by replacing the meter and is working through a trace of the lines to assess. PEX is the plan at this point depending on how much of the copper is still in good shape. It'll take a bit of time to get through