I don't think it's a question of not reading the signs or not knowing how to read the signs (surely, both skills should be in place before a driver's license is handed out). I think it's a problem of thinking that rules and signs simply do not apply because the driver is special. I see people turn right on red all the time. I see them speed through red daily. Keeping to the 40km/h speed limit downtown? Not likely.
If you put in bigger signs, surround them with flashing lights, and, indeed, add that valet idea (which, come on! would so add a classy feeling to the whole proceedings!), there will still be those who think they don't really need to follow these rules. I mean, they are special, aren't they?
As an aside, we were crossing 100 Ave by the Red Arrow. There is a very prominent "no right on red" sign. We watched a driver's ed car with a student at the wheel stop, hesitate, and then obviously say, eh, fuck it, and plow on through. I really wish I'd taken the guy's information because this is someone teaching someone else how to drive.