Well, from an entomologists standpoint, my opinion is obviously more amiable towards your unexpected guests. However, knowing that my affinity for insects is does not place me in the mainstream, I can understand the crisis at hand. I recommend calling an actual bee removal company. Many of them openly advertise a no-kill policy, and actually relocate them to less intrusive habitats.
Given the recent plague that has killed tens of millions of bee's in the US,
example article: ww.technologyreview.com/Biotech/19348/
and their immense (though largely unknown to the public) importance in our lives as agent of cross-pollination in plants,
example article: ww.factmonster.com/ce6/sci/A0856884.html
it would be sensible to make an effort to have them re-homed.
I know it's hippy-ish to a lot of you, but I calls it like I sees it!
