Coolant Leak / Overflow ???

[rick3000]

I have not messed with the bleeder valve, but it was recently at the dealer, because it was heating up more the normal, and they may have messed with the coolant tank (I know that they pressure tested it).

I am going to check everything again tomorrow, and maybe take it into the dealer.
Could it be as simple as overfilling the coolant tank when I topped it off, and it just drained the excess coolant?
If the coolant level is normal, would that signal nothing was wrong?

Thanks!