He told my best friends husband that he doesn't like coming home?

My husband told my best friends husband that he doesn't like coming home. My best friend talked to her husband about it and advised me that I need to make sure where my husband is after he gets home from work. He gets a paycheck stub with times he clocks in and clocks out. Well the time he gets home sometimes is two hours after he clocks out, what could this mean? I have checked to see if there was any money missing, and there wasn't, he hasn't changed his appearance, he is nice to me when he gets home. I have asked him about this and he ignores the question. I don't want to push it cause I don't wanna fight infront of the kids. He works as a logger so it is no telling when he will clock out at the shop, so its hard to spy on him. I can't call his work cause there is no one there but his very close cousin there to answer, I don't want to bother his boss with this. I wanna see whats going on....I don't have a friend with a car that he wont recognize....I can rent one, but don't have the money. He drives a company vehicle to and from home, so no lowjack...Im so needing some ideas on this, truthful please....help me relieve this issue....thanks