First time away from baby - advice?

[wildlifebio]

Hi Mamas -
DS is 6 months old and BF. He has been eating solids for about a month and LOVES them. I have to go on my first work trip in a few weeks and will be gone for 2 nights. I get to work out of a home office so I haven't had to be away from him much at all so far and he won't take a bottle (he did earlier on, but had to have 4 nose surgeries and then refused the bottle). Does anyone have any recommendations we could try because I am worried about him being super fussy and refusing the bottle when I am gone.
We have tried all different types of bottles and sippy cups to no avail.
Thanks for any advice.