If I had a few beers with dinner last night, would it affect blowing into a breathalyzer today?

This may sound silly… I need to borrow someone’s car and they have the breathalyzer thing attached to start it. If I had 4 beers last night (with dinner, but all before midnight), will it affect the breathalyzer today at 1pm?

I don’t think it would but I don’t want my friend would get in trouble if I have any trace of alcohol in me