Unless you are the 9 dollar an hour just change oil tech you can defeat the gps.Has been proven.Truckers do it all the time.My company has gps they dont gripe over a trip to the java house or a extra long lunch.Just not every day they did not see a dollar increase over said units.They also found most techs when on the road skip lunch and finish job at hand.We have had tech that cut the clock but the paper work will show that no matter how slick you think you are.2 to 3 calls to same customer over same problem 1hr to do same job that took 3.And yes if I get my pic on front page of local paper for dui or bank robery I will be fired even if it is on a saterday when I am not at work.If your company is cutting you on travel time they will cut you somewhere else.Find a new job and let the jiffy lube crew have yours.We are trained service men and jobs are not that hard to find.