Oh yeah, rule 30. Being a rando itself violates the letter of many rules, and I think goes against the spirit of the whole concept.
Having said that, this bike will have a dead level top tube.
OTOH, CO2 is for rides under 600k, and even then does not replace the need for a pump unless you have a team car and/our your plan includes calling a SO for help. Running out of time is legit reason to DNF. Running out of cartridges is not.