Civil CFAA
Direct access to data layer by licensed party bypassing the web interface did not violate statutes barring unauthorized computer access.
Interfering with tracking doesn't violate statute / constitute trespass to chattels.
http://media.ca7.uscourts.gov/cgi-bin/rssExec.pl?Submit=Display&Path=Y2016/D01-21/C:15-1830:J:Flaum:aut:T:fnOp:N:1690861:S:0
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.