UPS has the worst customer service processes and people, and their lack of ability to give instructions to drivers about where to and where NOT to leave packages and anything else reflects their dark ages mentality. The stupidity you encounter and total lack of caring when dealing with any and all of their "service" options is shameful and they should be embarrassed by how little they care about their customers.
Thankfully, I choose to NEVER use them when sending and only have to deal with them on deliveries, but even that is too frustrating! Choose ANY other method of mail service you can find!!!
Product or Service Mentioned: Ups Customer Care.