Did you leave Touchless Control untrained? I didn't disable it but it is untrained at the moment. My phone is a Developers Edition, unlocked and rooted, if that helps any.
I was able to use the Google Now Launcher on 3.2, maybe it is the version of the Launcher? Mine is 184.108.40.2064249 and I did side load it. I haven't
had any trouble with the hotword detection reverting to off as long as I say on 3.3.
Various threads in different forums say different things about this to being a Chrome problem to a Google Search problem to Motorola disabling it
on purpose so the it doesn't interfere with Touchless Control. I guess I'll have to see what happens when Search 3.5 comes out.
At the moment, I don't have a car so the parking feature doesn't have a relevance for me but setting a timer would be kind of useful.
If is is an accident, it would be nice it it were fixed quickly. If it is on purpose, I really wish someone would re evaluate the policy of not allowing a
function on a device that I purchased and would like to make the decision for my self. Just my opinion.
I do hope you find your solution. I came from a Galaxy Nexus and I have been really liking this phone so far as it is as close to the stock that the