Actually the license plate covers are back. The foundation was way down on donations so they re-instated them with different color schemes to indicate donation level...
http://www.chp11-99.org/usr_doc/Application2011.pdf
$2500 gets you a "classic" membership...but I'll bet you anything the $25,000 "gold" membership is the new get a warning vs. ticket license plate cover.
I'm actually considering donating @ the classic level on the off chance that it gets me one 100+ ticket reduced to 90+...the classic membership pays for itself after lawyer, fines, insurance increase etc. Not to mention the IRS write-off.