At least that's what I read in my local paper . . .
In any event, there is a fairly complete statutory regime in place in California about citizens' possession and misuse of pepper spray. Very few states regulate this at all. The Feds do, but mostly in interstate commerce terms - USPS regulations, hazardous materials transportation, etc. The woman who (allegedly) pepper sprayed her fellow customers last night is, to put it mildly, in a heap of trouble. See below: