husband trips away from home

Christy
Hi ladies- any of you set dates of when husbands/SO can not leave town?
My hubby wants to go on a guys trip 3 hours away when I am 36 weeks. This is our third child (the other 2 were induced at 41weeks). I know it's not likely that I will go into labor but it still makes me uncomfortable. 3 hours away would likely get him home in time if I went into labor but they will for sure be having some adult drinks. I hate to say no because it would be good for him to get away. 
Any thoughts?