I am not sure that there is any camping allowed off of Reserve, it is in the foothills and is managed by the City as the Ridges to Rivers trail system. Link: Ridge to Rivers Trail System
I have not scanned the page to see about camping, but it may contain some information about camping. Definitely will not be any camp fires or fire boxes allowed in the foothills right now.
The parks along the river will not allow camping, I know that for sure, but there is plenty of camping at Lucky Peak Reservoir and the camp sites are on the water. Lucky Peak is about 10 -11 miles to the East of Ann Morrison Park, where the Tour De Fat is located. You can ride the Greenbelt from the Lake to the Park by bike, just assuming your will be taking the festival in on a 2 wheels, should be about a 25 min ride but slight down hill from the lake, so the ride home will be a little longer depending on the amount of NB beverages you consume. If not it will be a 15 min car ride back and forth. Lucky Peak State Park
You have to cross the Dam to the east side of the lake for camping spots.