Definitely take your meds with you, and keep them in the original prescription bottles. When you're traveling it would be rather uncomfortable having to explain to anyone (cop who pulled you over, TSA, etc.) why you're carrying a C2 substance like Klonopin with you in a baggie, pill box, or whatever. Seriously, that's where addicts get in trouble; they don't have the OG pill bottles with them, therefore they must be a junkie. In that case it's guilty until proven innocent, and good luck getting your psychiatrist on the phone immediately to verify you're legit.

Drink whatever you choose to, you're an adult and can make informed decisions. Take your meds right before bed so mixing them with alcohol won't be an issue. Some people are superstitious about the mix, but most of the effects of mixing aren't physiological - they're psychological.

You know alcohol is a depressant and may lower your mood the next day. Nothing you're on is going to hurt you if you fall asleep after you mix them - I know you're on the Klonopin PRN, that's the only one I wouldn't take and you're not likely to have anxiety after drinking at a party like a wedding anyway. As for the others it's more important to keep your blood levels intact to guard the best against any mood effects of the alcohol/hangover.