My wife knows the route I take to get to work. Although my work times and location vary quite a bit so if I didn't show up at the client's office this morning they would have just assumed I went to my company's office, and vice-versa. So odds are nobody at work would have known to come look for me.

Our MUP is fairly well used even during the winter so I probably wouldn't have had to wait too long had I been severely injured and not been able to reach my phone. In fact, about 1/4 mile back I had just said "good morning" to I guy I see out walking every day. He would have happened upon my body within a few minutes of me going down.