I am not local to the area anymore, however I hosted a cars & coffee style event in late 2016 that quite a few forum members attended. Definitely reach out to the folks on this thread, many are long term owners
https://www.zpost.com/forums/showthread.php?t=1314185
HWY 9 is almost too tight, instead I suggest La Honda (84) out to HWY 1 and do it while traffic is minimal - early in the a.m.