If I operated a store.. I would prefer not to have a personal shopper accompanying every potential customer whispering in their ear recommending products from other competing stores..
One option might be to post a 'no soliciting' sign... and with the Google toolbar I may implement the java script written by the powers over at searchguild.com
http://www.searchguild.com/autoblink/
Complete with amazon affiliate ID substitution.
:)
-steve