I figured it out. In case others care to know:

1. I created a separate folder and did the whole vagrant init there.
2. I configured the Vagrant file to use a bridged network.
3. I signed into my vagrant VM ($ vagrant ssh) and ran ifconfig to get my ip.
4. I added that ip to my capistrano deploy file.
5. I passed along vagrants ssh info to my local configs: vagrant ssh-config >> ~/.ssh/config
6. I ran my deploy, when prompted for the ssh password, I used vagrant

It worked.

I figured it out. In case others care to know:

1. I created a separate folder and did the whole Vagrant init there.
2. I configured the Vagrant file to use a bridged network.
3. I signed into my vagrant VM ($ vagrant ssh) and ran ifconfig to get my IP address.
4. I added that IP address to my Capistrano deploy file.
5. I passed along vagrants ssh info to my local configs: vagrant ssh-config >> ~/.ssh/config
6. I ran my deploy, when prompted for the SSH password, I used vagrant

It worked.