How to programatically stop/start Replication Local-Publication Snapshot agent after changing Publication configuration

I need to programmatically or via Powershell or TSQL stop and start a replication transactional snapshot agent after changing a publication configuration.

Config change below:-

USE [POS]
EXEC sp_changepublication
  @publication = N'IN_STORE',
  @property = N'snapshot_in_defaultfolder',
  @value = N'false'
GO

EXEC sp_changepublication
  @publication = N'IN_STORE',
  @property = N'alt_snapshot_folder',
  @value = N'C:\Program Files\POS\SqlSnapshots'
GO