http://www.dailymail.co.uk/sciencetech/article-2724381/Mastodon-tusks-primitive-tools-discovered-fisherman-suggest-humans-settled-North-America-thousands-years-previously-thought.html
""The incredible archaeological find was discovered in 230 feet of water 60 miles off shore in 1974. Fishermen who were dragging their scalloping nets across the bottom of the bay snagged a massive mastodon skull and dragged it to the surface."
"The Chesapeake has been underwater since the last ice age ended 14,000 years ago - meaning the tool is at least 14,000 years old."
So oceans have risen and receded long before the SUV, but this time it's our fault. Sorry not buying it.