I don't understand how driving is considered preaching. I never understood the counting of time. It's rather useless to me. All that time spent walking, and driving is counted yet no one is 'preached' to during this. To me, the amount of time you spend at the door actually talking to someone is what should be counted if at all.
My Dad could never answer my questions on this. You could spend hours and hours driving and walking to peoples' homes and if no one is home, not one person will be 'preached' to yet the time is counted.
It makes zero sense to count this as it is 100% useless ... oh, unless your goal is REALLY to keep people busy so they think they are doing something important and to use it as a control mechanism.