SpawnTrigger.cs
using Sandbox;
using System.Numerics;

public sealed class SpawnTrigger : Component, Component.ITriggerListener
{

	public async void OnTriggerEnter( Collider other )
	{
		var player = other.Components.Get<GudeMovement>();

		if ( player != null ) 
		{	
			var gravity = player.Gravity;

			var directionalInfluence = player.DirectionalInfluence;

			var spawn = player.Spawned;

			Log.Info( "Get Ready!!!" );

			if (  spawn == true )
			{
				player.Rigidbody.Velocity = Vector3.Zero;

				player.Gravity = 0;

				player.DirectionalInfluence = 0;

				await Task.DelaySeconds( 2 );

				player.DirectionalInfluence = directionalInfluence;

				player.Gravity = gravity;

			}
		}
	}

	public void OnTriggerExit( Collider other )
	{
		var player = other.Components.Get<GudeMovement>();

		if ( player != null )
		{
			var spawn = player.Spawned;

			Log.Info( "Left Trigger" );

			if ( spawn == true )
			{
				player.Spawned = false;
			}
		}
	}
}