Shouldn't it point to the original cpanm? Since after the reboot I'm no longer running 5.8.1? Color me confused... I will check what you've posted to see what it shows though.
Update: Here is what I get:
hsmyers@ubuntu:~$ cd /usr/perlbrew/perls
bash: cd: /usr/perlbrew/perls: No such file or directory
hsmyers@ubuntu:~$ cd ~/usr/perlbrew/perls
bash: cd: /home/hsmyers/usr/perlbrew/perls: No such file or directory
hsmyers@ubuntu:~$ cd /usr
hsmyers@ubuntu:/usr$ cd perlbrew
bash: cd: perlbrew: No such file or directory
--hsm
"Never try to teach a pig to sing...it wastes your time and it annoys the pig."