The theme of the night is what we're calling classy comfort. By no means is this a black tie event, but we also aren't looking for people to show up in blue jeans. If it looks nice and it's comfortable to wear, go for it!
The ceremony starts at 3:30 pm and guests can start arriving at 3. For those staying at the recommended hotel there will be transportation provided should you so desire with the first round leaving at 2:30pm.
The short answer is yes! Cameron Estate Inn is a functioning restaurant and hotel as well as a popular wedding venue so they do have a reasonably sized on site parking lot for those looking to transport themselves.
For those flying there are several airports that are in the general area. The closest being the Lancaster airport which is only about 10 miles away. From there you would have other options such as Harrisburg, Baltimore, or Philadelphia.