Removing dishwasher without replacing?

Hi, we are buying a new dishwasher, it is being delivered, and the delivery comes with free collection of the old washer, but the old washer has to already be uninstalled for them to do that. They are coming Tuesday and we won't have time to unhook it, so I uninstalled it today (Saturday). That wasn't so hard. Problem is now I have an unplugged drain inlet on my disposer, and an open hookup on my hot water line. So, I can't use hot water, the disposer, or the drain (it will backflood out the inlet) until the new washer comes in three days! All the instructions online on how to remove a dishwasher all assume you are putting a new one in immediately. What's more, my hot water line seems to be leaking (the shutoff knob is turned off as far as I can possibly get it) out the washer hookup.

Can I just get a cap for the hot water line? Is this a common plumbing piece? How about the disposer inlet? Disposers come with a plug in the inlet in case you're not going to hook up a dishwasher. But they don't account for you removing a dishwasher permanently. What's the best way to temporarily re-plug the disposer's waste inlet? Does there exist some sort of dead-ended rubber hose bootie I can clamp on to it?

Thanks. Also, does no one ever permanently remove their dishwasher? It seems like none of the DIY resources account for this possibility at all!

(I realize I'm not actually permanently removing my dishwasher, but the issues are roughly the same..)