victor - 10:10 pm on Oct 7, 2007 (gmt 0)

duskrider:

The law shouldn't force me to change that, even if I do sell something.

No one is asking you to change anything.
The ADA predates your website, so complying with it was simply one more thing on the checklist you were required to address as part of providing a place for public business.
If you did not do that, you may need to revisit your actions from the beginning.