At the level's opening, look above the second street sign -- you can swing to this Collectible with relative ease -- no need to speed release. Collectible 2 Follow the street to the first Waypoint.
On the path to confront Fizzwidget, you will notice a pink glass window on the ground level that has a hole near the bottom. Use the Spiderbot to crawl through, and hit the unlock button on the gates.