Getting off Paying Tolls少扣過路費

I drove along the same way in these three days.
At second day, I happened on to follow a tourist coach in the traffic jam.
I tried to drive close to the tourist coach as near as possible.
It really made me getting off paying some tolls.   :P
PS : Do not learn me. It is dangerous.
連續三天走一樣的路,
中間那天塞車時正好跟到一台遊覽車,
所幸跟緊一點玩玩看,
還真的讓我少扣好幾站.   :P
PS : 叔叔有練過, 小朋友不要學.