Even brothels offer free gas

As it turns out (see promotion below), automobile manufacturers are not the only ones trying to entice consumers with free gas — the Shady Lady brothel has just joined this new trend (see a story about this). I am guessing that free gas is effective in getting people to buy cars — at least relative to direct discount — but I am wondering what is the sense in discounting brothel related services. Perhaps it is meant to give people the feeling that their drive to and from the place is free!