Very bad experience, with UPS driver Mr.Kit, who triggered the lift alarm twice, and when asked driver of Veh GBL536J shouted at the officer, using chinese vulgarity in an open concept that everyone can hear. UPS, should look into the matter seriously, as drivers bad attitudes may portrays on the UPS company as a bad image. Driver, his frustration should not vendor on others, as officers we are only delivering our duty, following procedure. I hope, company will look into this, and as for myself I will never use UPS service, AT ALL. Very bad experience.