HOUSTON (AP) _ A woman who once chained herself to a pushcart and sold hot dogs on a downtown street corner will not be able to sell her food this summer in local parks, city officials said.

Shirley Rubenstein is not part of a group of vendors picked to take part in a pilot program to sell food from outdoor carts in city parks because other vendors submitted better proposals, said Roy Witham, deputy parks director.

But Ms. Rubenstein said the city is trying to drive her out of business because of her publicized crusade to sell New-York style hot dogs from pushcarts.

She said she was not sure what to do next because she has run out of money and can't even pay a $250 fine received last month for operating a food service establishment without a permit.

The conviction resulted when she chained herself to the cart in January to protest the city health department's refusal to give her an application for a permit.

Mobile vendors had not been allowed in city parks until the city council approved the new program in March.