I was holding to say this, but ...
one thing you can do (in the future) is to avoid the spot like Alice's, especially in weekend, especially in spring / summer, when the weather is nice.
I know it's not entirely your decision when you are riding in group, but it (avoiding popular / well known spot) makes pretty big difference (that is, if you have many "gray zone" items on your bike).
If I were frequently hanging around at Alice's in weekends, I WILL get ticket (at some point) about my "kicked up for satellite view only" license plate. (and possibly straight through ARROW pipes. And my Non-DOT helmet.)
(The plate is not readable from Crown Victoria's driver's seat. But, (fortunately for me), now almost all CHP and local PDs are using Explore, so the angle of the plate doesn't look that bad from their point of view.)
Crown Vic
Explore