So this morning I went out to my garden to check on things and discovered that BOTH of my potato towers got knocked over! After doing some sleuthing (aka seeing hair rubbed into the wire frames, and stepping in a cow pie the size of Montana), I deduced that my neighbor's cows got out and went barreling straight for my garden.
In the end, they weren't TOO destructive, aside from nibbling a few choice raspberry tips, knocking over (but not completely ruining) by potato towers, and dropping deuces like they had been stopped up for weeks, my garden is relatively unscathed.
I'm still bummed though. I think I will eat a big steak dinner tonight and make eye contact with the cows over the fence while I eat it.