It's not uncommon for people to show up late to events or miss a day or leave early. You can definitely still partake.
By the way, I've gotten slightly lost on the way to this site before - I think Google Maps just says something like, "turn left onto Paradise Drive, destination's on the left." There's a left turn just after you turn onto Paradise Drive that has a marker with the street number, 21930. If you take that path down, there'll be a castle on the left side and parking up ahead. Park in the lot and then head on in - there'll probably be folks outside who can point you in the right direction, but if not, just head on into the castle and look for someone that looks like they know what they're doing.
I'm not on staff, but I've been around a while. Do you guys have any specific questions or are you just looking for a little guidance? My general advice for this weekend, whether you're PCing or NPCing, is to pack warm, pack extra socks, and wear comfy boots. It's warm inside, but we'll be outside for long periods throughout the event and I think the warmest we can expect this weekend is about 30 degrees.
