On May 19, Connecticut Gov. Dannel Malloy stood in Ken Crowley's Plainville, Conn., Ford dealership to unveil a state-funded cash rebate of up to $3,000 for Connecticut residents and businesses that buy or lease electric vehicles.

The pilot program also includes a little something for dealers: a spiff of $300 or $150, depending on the amount of the customer rebate, for salespeople and others involved in the sale of each EV.

One person at the event -- an installer of solar panels -- spotted a white, 2015 Ford Fusion Energi in Crowley's showroom and bought it that day.

Connecticut consumers such as the Fusion Energi buyer can pile on the incentives, Crowley said.

"There's a $7,500 federal [tax credit], then the $3,000, so that's $10,500," he said. "And each manufacturer has consumer rebates on just about all their vehicles, electric cars included. It's a great opportunity for someone to really save a lot of money."

For now.

State incentives such as Connecticut's are running out.

Tight budgets -- worsened by crumbling infrastructure -- are prompting states to pull the plug on programs designed to boost EV sales. Other programs have limited funds, with no plans to offer more when the initial money runs dry.

Similarly, the federal tax credit program begins to phase out for a manufacturer's qualifying vehicles when 200,000 of those vehicles are sold.