A couple of things here. 1) Full Disclosure...the Pixel 2 will not be included in the March fix. Only 3, 3XL, 3a, 3aXL, 4, and 4XL. 2) Based on what you have written the phone is working as designed as sound like you are in bad coverage. Let me explain.

In all honesty, you don't want your device to see Band 26. If it does, it means you coverage suuuuuuucks. It is programmed to look for Band 41 first, then 25, and as a last resort 26. If you go inside your job and it does not pick up 41, it's either fair/weak coverage already or something environmental in the building (Metal roof, walls, surrounded by thick trees, etc). You further confirm my theory because you said your device picks up Band 2. Band 2 is a T-Mobile LTE band. The coverage is so weak it is roaming on T-Mo.

This is only based on your post. If I had the exact address, I could confirm it.