Tameron Honda Eastern Shore

I tried to purchase a used Honda Odyssey from them recently. The price that is shown on the internet is non-negotiable. Not even $10 will be taken off that price. They also charge a $500 processing fee, where most other places charge around $250. Also, when we stated we wanted to pay cash and not finance, they said the price would go up another $750. Go UP???? We left and went to another dealship and got the same year Odyssey but in the most elite package (Touring) in better condition with the same mileage for $2000 less. And we weren't upcharged for paying cash. Our sales person was Mark, even though we asked for another guy that we had been talking to on the phone. Horrible experience and I've been purchasing Hondas for 20+ years. I wouldn't even go to Tameron Eastern Shore to have my oil changed based on how we were treated.