Worst car buying experience ever. Had an appointm...

Worst car buying experience ever. Had an appointment at 545 with internet sales manager. Traffic was horrible, got there a little before 6 and he had left for the day. Started working with one salesperson and worked with him for about 30 minutes before he handed me off to someone else. They worked up pricing and started at 25,898 on the car, when the sticker inside the car said 23,670 and their internet pricing as 22,990. I also had email from internet sales manager for the 22,990. Then the did an appraisial of my car and offered me 7405 for 2009 car with less than 38,000 miles. When I added their figures on the appraisial amazingly there was a $340 mistake in the bottom line in their favor. So either their computer cannot add or someone messed with the numbers. To me very dishonest and I'm a prior customer of the dealership. Then the sales manager is the RUDEST person. His attitude is horrible and I do not know how he is the sales manager in a customer service industry. Needless to say I will NEVER return to this dealership even though I've bought from them previosly, after this experience.