You got it on the nose! I do have a half second timer to prevent multiple collisions and I unfortunately didn't catch this bug. I was rushing to get this done before the deadline so I didn't get to anyone other than myself to play test it. Thankfully it should be a quite fix and its still possible to complete the levels even with the bug if you adjust the positions of the cars.
I really appreciate that you took the time to post a video of it in action and play my game :)