The overtaking lane is supposed to be kept open at all times. Madaming vehicles that can legally drive over the limit and you must give way to them.

Tollway management is in charge of catching speeders. No need to block their progress using your own car. You can also call in the license plates to the traffic control center of NLEX and SLEX for vehicles with overspeeding or underspeed violations as well as non moving violations like unsecured loads on roof racks, no taillamps, etc.