Welcome to the WBCCI! I don't know anything about the Oregon Unit--it being a ways from here!--but my experience with several units is the WBCCI is the friendliest bunch of folks on earth!
Thanks for offering parking space! Members offering "courtesy parking" are listed as such in the annual WBCCI directory, and there is a separate compilation in the directory of courtesy parking by state, with phone numbers. (Etiquette suggests that you call a member before showing up to avail yourself of their offer.)
There is a box to check on the membership application to indicate that you are offering courtesy parking. If you didn't check it when you signed up, you can call or email headquarters and they can probably list you in the next directory.
See you down the road,