Morning all,
Aimze I would go for an hour honey! Yes, he will only have been home for a few days, but you have the intros on top of that, I bet it'll already feel like he's been home ages!
With little man if we went out for family meals etc I'd just try and keep his routine as much as possible. I'd bath him before and put him into a romper suit without the feet so it looked like an outfit but could be slept in, then id take a fluffy zip up suit with me. Then when leaving id put that in him and he'd sleep in that rather than his grobag, he was always fine. I never gave him his bedtime bottle out as he associates that with sleep. So would wait til home and then give it him and do his bedtime songs etc.
Yes baby has to come first, but this is a one off, and an hour isn't going to have a significant impact on him, but it would stop you feeling guilty and missing it! X