1 – You notify your Homeowners’ Insurance Company of the alleged bite. I’m an insurance adjuster. This is an INSURANCE matter.
2 – You get proof that your dog has all the necessary vaccinations should this become an issue.
3 – I don’t know what “neighborhoods” driveway is. Neighbors’ driveway? If so, the dog was loose and out of your control and you COULD be cited.
4 – Jeans don’t have to be ripped if the dog bites or nips. He also has no obligation to show you the bite or nip.
5 – I’d ask for WITNESSES. Talk to your neighbors.
6 – Expect the Post Office to refuse to deliver your mail in the future.
7 – If the Police get involved, expect a visit from Animal Control.
8 – This sounds like it was minor. It could, of course, have been serious. You need to supervise your dog. It had time to get off the tie out AND wander around?