andrew027:
Even if the garage was lined I'd prefer to see the cable go through to the interior and run up the inside wall (with the assumption this would still get the cable to where it needs to be). The garage is already filled with tools and other "utility" items so a bit of conduit would not be too out of place, and it saves having a scar on the outside of the house that's visible from the street.
I think that is a good install - especially for free.
I have a Conduit run from the ETP into where I want my ONT to go with a draw cable already, I also have one from the boundary to the ETP as currently the copper is overhead and I don't want to keep that.
This way it is by far easiest for them to do exactly what I want.