Which is in part how we identify alien California invaders: We just wait for a drizzle and observe those headed from their car to a building. Mossbacks will walk as if it doesn't matter (mossbacks without glasses turn their faces up to receive the rain, mossbacks with glasses usually bow their heads a bit). After all, we'll drip-"dry" soon enough.
Californians just run.
*\;-)
Could they be from Wenatchee, WA?