I saw that someone asked about this. I did a search for "signature" in the forums because I was sure someone asked before.
The short answer is no, the ticker won't show in the signature section.
Here is the earlier discussion:
First or last...it's the same finish line
HF #4362 - no really :)
looks like it will however post in the body of the message if HTML is turned on. don't know if there is a way to toggle html in the signature.
No problem. I just remembered that someone else had asked about it.
Eric has disallowed the img tag in the signature so I don't think you can trigger it.