Tesla has massively raised its prices. Why does it matter if it’s a dealership raising prices or the manufacturer itself? The demand is greater than the supply and cars in the U.S. are essential for all but a few households. Prices are going to rise. It’s just a matter of who is getting the increased profit: the dealership, the manufacturer, or a third party.
15% is far greater than what other car makers have raised their prices by. There is a discrepancy between MSRP and what buyers are willing to pay. Someone will attempt to capture that profit.