Climb up entirely into the offwidth and then wiggle your way up like a worm until you can finally exit onto the poison ivy covered slab

The comp guide (and sticker) imply you are suppose to start in the middle of the boulder at some underclings and then climb up and into the offwidth before immediately escaping left.

Alternately if you want the full Wiggle Worm experence, start all the way down at the right side where the offwidth starts and thrash your way up the whole thing.

Wood's Hill area on the east side of the Hose boulder (west most large boulder). Look for the heinous slightly angling up offwidth crack

Crash pad + spotter in case you suddenly pop out of the offwidth.