[Baz]

Probably would have been better to tell him to just leave his number and you will call him when and if you are interested. "Now beat it...I'm busy right now working on my truck."

However - this does not mean you did anything wrong - completely on him to do the work WITHOUT A SIGNED AUTHORIZATION (as it would be explained IN COURT).

Yep - he did the sealing job without a signed contract or verbal agreement.

Thus he is S.O.L.

That said....if your lot needed the sealing....you could offer him $500.00 as a negotiated settlement. If you go down that road though....put it all down on paper and include signatures.

My 2 cents.