It's actually even worse. Hells Angels have been "collecting rent" from other inmates in the San Mateo County jail for years, i.e. running a protection racket with full knowledge of the sheriff's dept.
I don't use the Clipper Card but I still hate it as it is the major cause for the long lines to enter and exit BART. Invariably about one out of three people trying to use a Clipper Card are unable to do so, for whatever reasons.