I don't know if it went flat because of the 3" gash in the sidewall, or if the gash came from moving the truck on a totally flat tire. Regardless, the tire is ruined and I'm going to need a new one.
Changing the tire consumed most of my lunch break. (Bonus points for doing it in 90° weather in full Geek Squad regalia.) Lunch ended up being two double stacks, eaten on the way back to the store from Wendy's, because I didn't have time for more.
So--one of the tasks I get to deal with over the next few days is trying to find some tires for the truck. Hopefully I can find some decent used ones. Just a couple would do me, I think, for the time being. I'll have to make some phone calls tomorrow and see if I can locate any. Whee.
Other than the flat tire it was a pretty fair dinkum day at work today. The AC was actually on so the store wasn't an oven when I got there (about 5 minutes early) and it remained a reasonable temperature all day.
...and I lack the energy for further comment.