where is passenger pick for arriving flights and can we park and wait some where

There's no easier way to pick up a passenger than with our Cell Phone Lots!  Vehicles are not permitted to remain stopped in the Arrivals areas. Any vehicles not immediately picking up a passenger will be asked by security to keep moving. Our Cell Phone Lots, located near each terminal, provide free waiting zones for motorists picking up passengers curbside.  Your passenger calls when they are ready to be picked up, you can meet them curbside in minutes. https://www.flystl.com/parking-and-transport/parking

They give u only a few mins to pickup someone at arrival...arrival pickup depends on the airline...different locations...if u are at the airport or is going soon...directions are on the signs for arriving and departing flights