What is even more stupid is that I was being forced to pay the MD tax "in addition" to the CA tax. There's something called a "Reciprocity agreement" that handles these kinds of situations where if you paid more sales tax on a car in a state different than your home state, you can apply for a refund of the difference in your home state.
If Tesla had said, pay the CA sales tax because you're taking delivery here and you go figure out what the situation is in your home state, that would have been logical. The fact that I was expected to pay both taxes is 100% illogical. It's as if California is trying to say, "yeah we're CA, we don't give a $hit about other states or laws. My way or the highway".
Though, my understanding is that MD will not charge a sales tax as long as the sale is over 90 days old, except to the extent MD's tax is more than the other state's tax.