UPS tracking is pretty much useless anymore and does not show where your package is. Very frustrating if you ask me. I have some plants and I have no idea where in the US they are right now.
I did find this link from a UPS package store that does tell you where your package is! It works pretty good. https://www.theupsstore.ca/track/
I am going to try not using UPS anymore.
I ordered a trident maple (dormant) last December. It was shipped (USPS) the 13th of December when we had a solid week or two of mild temps. The tree showed up January 18th after severe cold spells. I was sure it would be dead, but it was growing! lol. It must have gotten stuck somewhere warm.
I hope your plants show up unscathed!