Camping beta Snoqualmie Pass area

My friend and I are considering heading out here to climb next weekend. We're both new to Washington and haven't been to this region yet. I've looked at a few of the campsites that are either booked or closed for construction. Looking for recommendations, resources, or any info on camping in this area. I've researched a few spots for dispersed camping, but we'd prefer to car camp if possible to keep logistics easier for climbing. I was looking at the map and saw some camping around Keechelus Lake, but it looks like you can't drive to these. Any pull-offs around this area where camping is allowed? Thanks in advance! 

Exit 38 is all fair game aside from the small state park area, personally have been camped here for almost 4 months and haven’t been bothered. I know it’s not quite the pass but it’s only a 15 minute drive or so. Tinkham road is also all 14 day dispersed camping and I believe the lake is good for dispersed as well. Have a good time!

I've seen lots of folks car camping in pullouts along the middle fork road as well.

There's been some people living down middle fork for the past 6-7 weeks, near the seasonal landslide, parked right on the road. Usually facing the wrong direction. There's broken glass next to one of their vehicles. 

What I'm saying is I don't think there is much enforcement in the area. 

Thanks for the info everyone!