danibel wrote:In California they mail them. It took exactly 8 days for my son to get his actual ID in the mail.
It took 2 weeks for my CA state ID to arrive last summer - and if I hadn't made an appointment for my DMV visit, it would have taken me 6ish hours of waiting (if I was lucky). With the appointment I only had to wait a month until they had an opening, but then I breezed right through. (I also live in a major city with exactly one DMV office within city limits, and it's only open 4 days a week due to the state budget)
The OP doesn't say where they're at, but to assume that they can get an ID "no problem" because it's easy for you to get one is like assuming... hell, anything. It's made up of false variables based on your situation, not theirs. Even in CA the experience I have is going to be way different than the experience of someone in a more suburban or rural area. I know that I'd be screwed if I lost my ID now - there's no way I could get one before I leave next Friday, even assuming I had an entire day free to sit at the DMV, so I can sympathize with the OP.
Like everyone has said, unless your cousin is under 18, there won't be a problem at the Gate. The only problem will be at bars, and then only if he looks younger than his mid-30s. If he's legal, yet on the young side (early-mid 20s), he might want to stock up on booze in camp, because he's going to have difficulty getting served.