Originally Posted by
izzik
Even though the City of Santa Monica has an extensive website with parking lot locations and real-time availability, it doesn't quite address the issue of whether people can park overnight. Does anyone know the rules around overnight street and garage parking in SM? Or am I stuck with the $30/day valet charge for the hotel?

The city garages are open 24 hours a day(or at least they have been when I've been there in past years). The city's website confirms this:
http://www01.smgov.net/planning/temp...eretopark.html
Structures 1 through 9
Open 24 hours 8am - 6pm: first 2 hours free, $1 each additional 30 minutes; $9 maximum daily; entering after 6pm: $5 flat rate
http://parking.smgov.net/det_downtown.html
http://parkingspacenow.smgov.net/