Matthew, please rest assured that checking the specific contract and knowing the time comes out of the rest of the week's hours was mentioned - altho it may have been in passing, and saying it again, and again, and again doesn't hurt - my running joke is that in theater we have to say everything three times in order to be heard once....
however, I second, as always, calling the AEA reps, cuz they know all the details and the wobbly places and what you can and cannot do, all a whole lot faster than searching for the right category in the contracts.
regarding that one-page "ettiquette" document being passed: it something I can see using is case by case, for specific casts - because some groups are more professional than others (and it doesn't always have to do w being paid) - for example, I just worked with a group of HS kids, and something like this (with a few adjustments) would be perfect for these young folks who are learning what it means to be a professional actor (esides remembering your lines and, hopefully, your blocking - and I have also worked w pros who in fact needed to learn that, for example, showing up on time and actually sticking w the director's artistic vision was a part of their job. Depends on where they got trained and if they actually had ever worked in theater before their current jobs.