High on Knife 3rd Snail Race box container not opening.

[-Forest-]

I finally beat it and it didn't open the container holding the box. At first I thought it might be a glitch cause had the slingshot gun and accidentally used alt-mode and shot out some bumpers. So ran it again after waiting for a bit. Just finished it again and still didn't open. So can't get the box. Hopefully it counted, I know it at least counted that I don't have any more races to run. But was wondering if the box had a card I need in it or just junk. Anyone know?

Edit: Looks like it does give you a card: Win the race out in Duffalo Ranch. You do have to complete the previous race to do this one, so don't do them out of order. Doing so will reward you with the Pyrat card.

So don't know how to get it now that the game has decided I've already completed that race.

[-Forest-]

Got it!!!!
For anyone else that might have the same problem. Ran it a 3rd time and the game pops up the results and you can exit. I didn't click the exit button this time just hit ESC key. Which should be same thing, but then made sure ran and hit the next grub located at the finish line. Looked back and the container was open. Got the Pyrat Card.