TooSweet -- Yes, the HBP med thing can get scary if you're not careful. I was still on a high dose after losing 50 pounds, so I had to get it reduced. Eventually, I got off it altogether, which was good because I never liked how I felt on it. I was dizzy and light-headed a lot. Check with your doctor before stopping it though because I don't know if your BP can shoot back up if you stop cold turkey. I've heard it can. My doctor cut mine in half, and then in half again before I stopped taking it. Good luck!
As for the Walden Farms individual packets -- they don't have to be refrigerated unless they're opened. I'm taking a bunch with me to Disney World. Like you, we're staying in a hotel room and won't have access to a kitchen. I'm an RV person, so I'm used to having all my stuff handy. We will have a fridge though, so that will help, but we won't have a car to go into Orlando. There's a grocery store that delievers though, so we might be making an order with them. They even have unsweetened almond milk, but I'm planning on bringing my own with me. I've been doing the same as you and checking all the menus at WDW. If you happen to be near any Cracker Barrels, they have a low-carb section on their menu. Good luck and I hope you have a good time!