Car camping around Boulder

Taking my SPI at the end of April and planning on crashing in the van for the time being. With little knowledge of the Boulder area just looking for some areas preferably on the city limits, but basically wherever I wont get hassled by other people or law. Any suggestions would be appreciated

You can park at my place and use my kitchen and spare bathroom. I live near foothills and Arapaho in boulder. Send me a pm.