iPod Touch as a hands free music or podcast player

Only if you had a mifi like device

http://www.att.com/shop/wireless/devices/novatelwireless/mobile-hotspot-mifi-lib erate-graphite.html#fbid=95BAGZ_tIyh

since Siri requires an internet connection.

Your iPod has Voice Control which allows limited control for music:

Use Voice Control. Turn Siri off in Settings > General > Siri. Then press and hold the Home button until the Voice Control screen appears and you hear a beep.

For best results:

• Speak clearly and naturally.
• Say only Voice Control commands, names, and numbers. Pause slightly between commands.
• Use full names.

Change the language for Voice Control. By default, Voice Control expects you to speak voice commands in the language that’s set for iPod touch (in Settings > General > International > Language). To use Voice Control in another language or dialect, go to Settings > General > International > Voice Control.

Voice Control for the Music app is always on, but you can keep Voice Control from dialing FaceTime calls when iPod touch is locked. Go to Settings > Passcode, then turn off Voice Dial.

For specific commands, see Siri and Voice Control. For more about using Voice Control, including information about using Voice Control in different languages, see support.apple.com/HT201936.