Kimmerz, I believe your neighbors. They wouldn't say anything to you unless they saw the vehicle. They have no ulterior motive to lie about something like this.
For now on, when you are told of such things, keep it to yourself and document it. You just never know when you may need that information. If you don't say anything, he will eventually slip up and tell you he had been there.
In the future, don't argue w/him. The more you try to defend your position, the more gaslighting he will do and yes, become defensive. For example, he told you that he was on the computer, he could be doing his work from a laptop or iPad or his phone. He certainly specify desktop.
You will learn to pick up on key words as you go along. You have more power to figure things out than you think.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
