I've had countless spam UPS texts and e-mails. Thankfully, I haven't been expecting a UPS delivery, but even if I was, I have never received contact from them about any delivery and would just delete it.
I doubt they were hacked. Some boiler room has phone numbers and e-mail addresses and they're just trying everything that most people use, or are familiar with enough to --- click a reply.
It's sickening that daily we have to spend so much time policing all of our personal business. I've had so many things go south, including my bank just being hacked, that I need a secretary.
Edited to add: I get them from FedEx, too.