For the warped wall (huge fan btw), maybe you could do a fairly easy slope jump? You can also count the amount of times they enter the zone, and on their 4th, their done. (1 for initial entry, 3 for each fall, and in qualifying you are eliminated after 3 attempts).
Bonus:
For the Wells Fargo bonus thing, you could add a steeper slope jump if the do it quick enough.