If you polish the paint, with anything other than a cutting compound etc, the paint will not be able to gas-off correctly and will cause the laquer to lift.

Leave it alone for 6-8 weeks, aand keep it clean. I wouldn't even use a compound on it, as it looks like the bodyshop has done that already.

You could use something PURE on it, like the pure caranuba wax Clarkson was eating on one of the old top gears. That stuff allows the paint to breathe, but it's 7k a tub....

Looks like an excellent bit of work, so don't spoil it with some Meguiars..