I'm up to about 900 miles now.
Didn't get any driving time in the Z yesterday, but I did clean it up. This time I tried something different... I filled a bucket with plain old hose water, added a splash or two of car wash soap, and got 4 microfiber towels good and wet and laid them over the bumper to pre-soak the bugs while I cleaned the windows.
Then I wiped the front of the car off and then quick-detailed the whole car. Still finding bits of the sticky backing residue on the roof, so I removed that as well. It took maybe an hour, taking my time.
Now it's all ready to get bugs all over it again.