I had been listening to 453.425 and 453.525 with no PL tone for the last hour and all I hear was just two key ups with no voice. Did NYSP Thruway switched frequency? I'm located in New York City by the way.
It could be a problem with either the Ardsley or Larchmont repeaters, which are the closest to the city.
Listening to the NY Division Thruway feed, they're coming in loud and clear. That feed is hosted in Rockland County and picks up the Mahwah repeater on 453.425.