the first 1:30 min are the instapass, the rest is not relevant, but i cba to upload a new video

so you start chaperone, get to mission flag 0 (for example complete/fail a rampage while on chaperone, i used earleys' tool in the video), then start big'n'veiny

staying in the phone marker starts turismo and crashes the game, that's why i jump from the limo to take big'n'veiny

after that you need to destroy the van or get in the van and let the timer run out and then you can do missions (i tested chaperone) normally again