Since my post count is too low to link my previous comment to this thread, I'll just repost my thoughts below.
The only way I see this going anywhere is if top retailers send out a newsletter imploring their customers to sign the petition.But even then bro. It's over. If Obama vetoes the bill the senate can still enact with a 2/3 vote. This may buy some time but considering the initial vote was unanimous it would take some crazy lobbying skills from companies who didn't fight this legislation in the first place.
Or, I suppose if we reached the 100k threshold and each one of them called to complain about the ban it could change some minds in the senate, but probably not enough.
Side note: I hate to say it but the fault is on the shoulders of the larger PH manufacturers out there. Considering the market is grey and their were legal ramifications prior to this bill I can understand why no one put up a fight. As an industry we should have (should??) advocate for the legalization or decriminalization of AAS as a whole.