i dont know about the jail time but i believe it. as for having the breathalizer installed, i heard this is official.
i got mines installed after getting caught driving with a suspended license due to a DUI. well it was in san mateo (you know how it goes over there). ive gotten it for almost a year now. at first i fucking hated that shit, cuz either the installer didnt know shit and installed mines incorrectly or the machine still has bugs. there were times i couldnt get the shit to work and i had to get my car towed to the shop under my expenses until the breathalizer company reimbursed me that took me half a fucking a year. but ive grown to kindve like it having the thing in my car, which prevents me from driving with any alcohol in my system. but im still gonna get it off whenever i can since you gotta pay about $70 a month just for having the shit.