Filling the intertubes

Earlier today I sent out a message to a mailing list, and I got the inevitable out of office replies. I can accept that they're a useful idea, but not when this is the message:

I will be out of the office starting 09/10/2007 and will not return until 09/11/2007.

I will be travelling on business on September 10th. I will respond to your message no later than September 11th.
Thank you for your patience.

In particular note the "I will respond...", not "I may" or "If any action needs to be taken, I will...".

I'm debating whether I should respond with this:

Thank you for your out of office reply. Unfortunately I will be out of my office on September 11th, so I will not be able to reply to the response you have promised until September 12th. I hope the delay this causes does not unduly inconvenience you.