My husband is having a vasectomy on Friday. How long will recovery take?

What will he be able to do or not do? He was told by the doctor to take the weekend off, but he has his national guard weekend. He's a cook, so it's not too strenuous, but I imagine there'll be lifting involved and standing on his feet all day, and then is returning to a fairly physical job on Monday. I think he's a fool. From those who have been through it, what can I (or he) expect?